-mo
WER
EAF T
D. If he hadn't stepped on the mine, it wouldn't have exploded.
21. In my experiments, the liquid is cooled to 32°F. It always freezes.
A. If you cool the liquid to 32 degrees, it froze.
B. If you cooled the liquid to 32 degrees, it would freeze.
C. If you cool the liquid to 32 degrees, it will freeze.
D. If you had cooled the liquid to 32 degrees, it would have frozen.
22. It may rain this afternoon. I hope it doesn't because I don't want the match to be cancelled.
A. If it rains, the match is cancelled.
B. If it rains, the match will be cancelled.
C. if it rained, the match would be cancelled.
23. Unfortunately, I don't know Philosophy, so I can't answer your question.
A. If I know Philosophy, I can answer your question.
B. If I know Philosophy, I will be able to answer your question.
C. If I knew Philosophy, I would be able to answer your question.
D. If I had known Philosophy, I would have been able to answer your question.
24.
there are some more ideas, we can end the meeting now.
A. If
B. As if
C. Unless
25. If he
with us now, he
A. is / can enjoy B. was/ will enjoy
26. If they had searched more carefully, they...the
A. will find
B. would find
27. If I had got up early, I
A. have
B.I had
28. I cannot buy a new computer
A. if
B. even if
30. If you do so, it
A. makes only
31. You
29. Most people you meet will be polite to you
A. if you are polite to them
C. unless you are polite to them
A. will speak
to have breakfast now.
the matter worse.
B. would only make
English fluently unless you
B. will not speak
the beauty of nature of the National Park.
C. has been / would enjoy
watch sooner.
C. found
32. Hurry up
A. if
33. You will get a good seat if you
B. came
A. come
34. Sam will not graduate
D. If it had rained, the match would have been cancelled.
I save enough money.
C. unless
37. If I
A. had not caught / would have been
C. have not caught / were not
38. He looked frightened as if he
C. will only make
practice it every day.
C. can speak
you will miss the bus and be late for school.
B. and
C. or
C. would have
first.
B. if you will be polite to them
D. if you were polite to them
C. have come
A. if he passed all the tests
C. unless he passes all the tests
35. If I had time, I would go with you.
A.I am free and surely go with
you.
C. I will go with you because I have time.
36. If Margaret hadn't been wearing a seat belt, she.... Injured.
A. has been
B. would has been C. would be
the rain yesterday, I ill.
D. as if
a ghost.
D. as
D. will come
B. if he does not pass all the tests.
D. unless he had passed all the tests.
D. In case
D. were / could enjoy
D. had only made
D. did not speak
D. would have found
D. would have had
B.I am too busy to go with you.
D. I am free enough to go with you.
D. would have been
B. had not caught / would have not been
D. have not caught / would have been