1. The room is such a terrible mess. It ____cleaned as the landlady said.
A. mustn't be
B. mustn't have been
C. can't be
D. can't have been
2. With her hands so full, she____to the concert last night.
A. wouldn't go
B. oughtn't to go
C. shouldn't have gone
D. mustn't go
3. We ____ her letter last week. We don't know what has happened to her.
A. must receive
B. must have received
C. ought to receive
D. ought to have received
4. There ____be an open window somewhere, I can feel cold air coming in.
A. should
B. must
C. seem
D. ought
5. If the doctor had been available, the patient _______.
A. could not have died
B. should not have died
C. wouldn't have died
D. would not die
6. Since it's snowing so hard, we____at home.
A. had better staying
B. should stay
C. had better to stay
D. might as well stay
7. The wine bottle is nearly empty; you ____ a lot.
A. may have drunk
B. ought to have drunk
C. must have drunk
D. could have drunk
8. According to western culture, you ____ask a woman her age; it is impolite.
A. needn't（不必）
B. don't have to
C. mustn't （不可以）
D. have not got to
9. She didn't know you were here; otherwise she ____ to meet you.
A. would have come
B. had come
C. must have come
D. would come
10. I wish you____a little longer.
A.would stay
B. will stay
C. would have stayed
D. will have stayed
