THÔNG TIN CHI TIẾT ĐỀ THI
ĐỀ THI Ngoại ngữ
Số câu hỏi: 50
Thời gian làm bài: 60 phút
Mã đề: #4968
Lĩnh vực: Ngoại ngữ
Nhóm: Tiếng anh - THI THPTQG
Lệ phí:
Miễn phí
Lượt thi: 3762
Đề thi thử THPT QG Tiếng Anh năm 2018
Câu 1
A.
dramatic
B.
entertain
C.
employee
D.
musician
Câu 2
Choose the word that has different primary stress: occur, prefer, apply, surface.
A.
occur
B.
prefer
C.
apply
D.
surface
Câu 3
A.
suggest
B.
survive
C.
support
D.
summer
Câu 4
Choose the word that has different pronunciation: extended, skipped, looked, watched.
A.
extended
B.
skipped
C.
looked
D.
watched
Câu 5
We've had _________ problems with our new computer that we had to send it back to the shop.
A.
so
B.
such
C.
enough
D.
too
Câu 6
Dawn's thinking of setting ________ a social club for local disabled people.
A.
out
B.
in
C.
up
D.
off
Câu 7
Mr. Putin won a fourth term as Russia's president, picking up more than three-quarters of the vote with _________ of more than 67 percent.
A.
an outcome
B.
a turnup
C.
a turnout
D.
an output
Câu 8
His work ________ new ground in the treatment of cancer. It is now giving many cancer victims hope of complete recovery.
A.
broke
B.
found
C.
dug
D.
uncovered
Câu 9
We like ________ policies.
A.
American recent economic
B.
recent American economic
C.
recent economic American
D.
economic recent American
Câu 10
She worked here for a while then _________ afternoon she just quit and left.
A.
an
B.
one
C.
the
D.
Ø
Câu 11
DNA tests ________ accepted in court eases.
A.
are known
B.
were used
C.
have been
D.
will have
Câu 12
The disavantaged should be cared for by _______.
A.
the wealth
B.
wealth
C.
the wealthy
D.
wealthier
Câu 13
Why not ________ the meeting until Thursday morning?
A.
postpone
B.
postponing
C.
you postpone
D.
do you postpone
Câu 14
You're 18! You ________ to be able to look after yourself by now.
A.
are advisable
B.
expect
C.
suppose
D.
will have
Câu 15
I was very sad when the vet said he'd have to ________ Gertie, our lapdog.
A.
put down
B.
feel up to
C.
pull through
D.
wear off
Câu 16
It is said that a drizzle on the Phap Van - Cau Gie Expressway caused poor______ and slippery road surface, leading to the vehicles, traveling at high speed, unable to respond safely.
A.
vision
B.
view
C.
visibility
D.
visionary
Câu 17
When posed with a complicated mathematical equation, some students seek the assistance of a teacher.
A.
spaced
B.
informed
C.
solved
D.
presented
Câu 18
At the advent of his speech, he told a joke but the audience failed to laugh. (underlined words CLOSET in meaning with)
A.
end
B.
commencement
C.
creation
D.
climax
Câu 19
He revealed his intentions of leaving the company to the manager during the office dinner party.
A.
disclosed
B.
concealed
C.
misled
D.
influenced
Câu 20
Most of the guests at the dinner party chose to dress elegantly, but one man wore jeans and a T-shirt; he was later identified as a high school teacher. (underlined words OPPOSITE in meaning with)
A.
unsophisticatedly
B.
decently
C.
gaudily
D.
gracefully
Câu 21
Sue is phoning Mr. Black but his secretary tells her that he is on vacation.
A.
I'm afraid he is not here.
B.
He is taking a message now.
C.
Yes, I'll make sure he gets it.
D.
No, you can't tell him.
Câu 22
Peter and Mary are friends. They have just finished lunch in a restaurant.
A.
Yes, speak to you soon.
B.
No, this is on me.
C.
It's nothing.
D.
Don't mention it.
Câu 23
WILLIAM THE HERO!
A.
called
B.
talked
C.
spoke
D.
told
Câu 24
WILLIAM THE HERO!
A.
done
B.
made
C.
acted
D.
worked
Câu 25
WILLIAM THE HERO!
A.
Since
B.
Because
C.
In spite
D.
Instead
Câu 26
WILLIAM THE HERO!
A.
manage
B.
find
C.
get
D.
reach
Câu 27
WILLIAM THE HERO!
A.
agreeable
B.
happy
C.
grateful
D.
approving
Câu 28
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
History's Most Important Inventions
B.
Accidental Inventions and Discoveries
C.
How to Become a Great Inventor
D.
You Don't Always Get What You Want
Câu 29
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
detailed
B.
tough
C.
specific
D.
constant
Câu 30
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
research
B.
dream
C.
request
D.
attempt
Câu 31
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
People first used it as a refrigeration device.
B.
It was created many years before Coca-Cola.
C.
The man who made it was a pharmacist.
D.
It is used for kitchenware nowadays.
Câu 32
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
The person who made Teflon
B.
The creator of Coca-Cola
C.
The man who discovered penicillin
D.
The inventor of the microwave
Câu 33
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
one of the most famous inventors in history
B.
a person who made an accidental scientific discovery
C.
someone who became a millionaire from his invention
D.
a man who dedicated his life to medical science
Câu 34
A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.
A.
Doctors seldom use it nowadays.
B.
Some people are not affected by it.
C.
It is an invaluable medical supply.
D.
Mold combines with bacteria to make it.
Câu 35
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
that watching or reading the news is extremely boring
B.
that most news stories are false
C.
that most people don't realize how different news is from reality
D.
that most people don't pay enough attention to the news
Câu 36
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
One effect of commercialism is news stories with more complex content.
B.
The ABC network owns Disney Studios.
C.
Some news broadcasts are shown without advertisements.
D.
More time is devoted to news on TV now than 50 years ago.
Câu 37
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
To indicate that ABC shows entertaining news stories
B.
To give an example of news stories that are also advertisements
C.
To contrast ABC's style with that of CBS
D.
To give an example of news content that is not serious
Câu 38
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
if a story is cut by the editor, only the less crucial information will be lost
B.
it makes a story more likely to be cut by the editor
C.
it makes a story more likely to attract the attention of the audience
D.
it makes a story simpler and easier to understand
Câu 39
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
chosen
B.
known
C.
gathered
D.
sent
Câu 40
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
Journalists' use of experts as sources
B.
Journalists' becoming friends with their sources
C.
Journalists' search for alternative points of view
D.
Journalists' using government officials as sources
Câu 41
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
journalists
B.
organizations
C.
experts
D.
sources
Câu 42
How is the news different from entertainment? Most people would answer that news is real but entertainment is fiction. However, if we think more carefully about the news, it becomes clear that the news is not always real. The news does not show us all the events of the day, but stories from a small number of chosen events. The creation of news stories is subject to specific constraints, much like the creation of works of fiction. There are many constraints, but three of the most important ones are: commercialism, story formulas, and sources. Newspapers, radio, and TV stations are businesses, all of which are rivals for audiences and advertising revenue. The amount of time that the average TV station spends on news broadcasts has grown steadily over the last fifty years - largely because news is relatively cheap to produce, yet sells plenty of advertising. Some news broadcasts are themselves becoming advertisements. For example, during one week in 1996 when the American CBS network was airing a movie about the sinking of the Titanic, CBS news ran nine stories about that event (which had happened 84 years before). The ABC network is owned by Disney Studios, and frequently runs news stories about Mickey Mouse. Furthermore, the profit motive drives news organizations to pay more attention to stories likely to generate a large audience, and to shy away from stories that may be important but dull. This pressure to be entertaining has produced shorter, simpler stories: more focus on celebrities than people of substance, more focus on gossip than on news, and more focus on dramatic events than on nuanced issues.
A.
Journalists focus on poll numbers instead of campaign issues because it is easier.
B.
Journalists are more interested in issues and candidates' views, but viewers are more interested in who is winning.
C.
During an election campaign, journalists mainly concentrate on "horse race" coverage.
D.
Candidates' views and how they are explained by journalists can have a big effect on poll numbers.
Câu 43
Her weigh has increased remarkably since she began receiving treatment.
A.
Her
B.
weigh
C.
remarkably
D.
receiving
Câu 44
Upon reaching the destination, a number of personnel is expected to change their reservations and proceed to Hawaii. (underlined part that needs correction)
A.
reaching
B.
is
C.
to change
D.
proceed to
Câu 45
The University of Kentucky has held this prestigious title until 1989, when it was granted to the University of Georgia. (underlined part that needs correction)
A.
has held
B.
it
C.
was granted
D.
to
Câu 46
There is no point in your phoning Jane - she's away.
A.
It would be a waste of time phoning Jane - she's away.
B.
You waste your time if you insist on phoning Jane - she's away.
C.
Don't spend your valuable time phoning Jane -- she's out.
D.
Jane is very difficult to phone - she's always away.
Câu 47
He smokes too much; perhaps that's why he can't get rid of his cough.
A.
If he didn't smoke so much, he may get rid of his cough.
B.
If he smoked less, he might be able to get rid of his cough.
C.
If he smoked so much, he couldn't get rid of his cough.
D.
If he does not smoke, he may not have his cough.
Câu 48
"Why don't you take extra classes in English if you want to become a tourist guide?" said my friend.
A.
My friend advised me to take extra classes in English only if I wanted to become a tourist guide.
B.
My friend suggested I take extra classes in English if I wanted to become a tourist guide.
C.
In my friend's opinion, I will never become a tourist guide if I don't take extra classes in English.
D.
In my friend's opinion, taking extra classes in English is necessary if I wanted to become a tourist guide.
Câu 49
Darwin/ who/ be/ famous/ English/ scientist/ develop/theory/ evolution/ .
A.
Darwin who is a famous English scientist developed a theory of evolution.
B.
Darwin who was the famous English scientist develops the theory for evolution.
C.
Darwin, who is a famous English scientist, has developed a theory on evolution.
D.
Darwin, who was a famous English scientist, developed the theory of evolution.
Câu 50
They/ not answer/phone/ this morning, so/ must/ out/.
A.
They hasn't answered the phone this morning so they must have been out.
B.
They didn't answer the phone this morning so they must be out.
C.
They didn't answer the phone this morning so they must have gone out.
D.
They hasn't answered the phone this morning so they must go out.