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1. —That must be a mistake.
—No, it _____ a mistake.
A. must not be
B. needn’t be
C. cannot be
D. would not be
2. —_____ I water the trees on Tuesday?
—No, you needn’t.
A. Can
B. Must
C. May
D. Shall
3. He _____ not pay unless he is punished to pay.
A. shall
B. will
C. can
D. would
4. I _____ such a mistake again.
A. shall never make
B. may never make
C. can never do
D. need never do
5. —_____ I turn on the radio?
—You’d better not. It is noisy enough in this room.
A. Shall
B. Must
C. Need
D. Do
6. Let’s go to the library this afternoon, _____?
A. shall we
B. will we
C. can we
D. should w e
7. Where are my keys? I _____ lost them.
A. ought to
B. should have
C. will have
D. must have
8. Even if he has time, he _____ shopping in town on Sunday.
A. won’t go
B. will go
C. won’t go to
D. doesn’t go
9. He _____ finished earlier.
A. shall have
B. ought to
C. could have
D. must have
10. In case I _____, I would try again.
A. will fail
B. would miss
C. should fail
D. shall miss
11. Since the road is wet this morning, _____ last night.
A. it must rain
B. it must have rained
C. it must be rained
D. it must have been rained 12. He asked me if he _____ open the window.
A. shall
B. would
C. will
D. should
13. Everyone _____ do his best to make the world safe and clean.
A. can
B. may
C. should
D. had t o
14. _____ to have lunch with us today?
A. Do you like
B. Would you like
C. Will you like
D. Have y ou like
15. —Will you lend me your book?
—Yes, I _____.
A. will
B. need
C. can
D. must
16. If I had time, _____ see that new movie at the Capital Theater.
A. I will
B. I may
C. I shall
D. I would
17. The English of her composition is too good. She can’t _____ i t herself.
A. have to write
B. have written
C. write
D. be written
18. You _____ the look on his face when he won the lottery.
A. would have seen
B. can be seeing
C. must see
D. may see
19. The light is out in her room; she _____ to bed.
A. must have gone
B. had gone
C. must be going
D. must go
20. They _____ that far; but they stopped to have a snack on the way.
A. might be gone
B. needed go
C. could have gone
D. ou ght have gone
21. He _____ to the farm yesterday.
