16. The streets are all wet. It ______ during the night.

　　A. must be raining B. must have rain C. must have rained D. had to rain

　　17. She ______ on her way to school, I just phoned her home and no one answered me.

　　A. should be B. must have been C. must have rained D. had to rain

　　18. The house is dark and quiet, so the Browns ______ have gone to bed.

　　A. must B. should C. ought to D. would

　　19. Mr. Zhang isn’t here yet, I think he ______ about the meeting.

　　A. should have forgotten B. ought to forget C. must have forgotten D. may forget

　　20. I can’t find Tom anywhere I think he must go to the library.

　　21. ______(你不该对孩子如此严格),He’s old enough to make his own choices.

　　[You shouldn’t be so strict with the child]

　　22. I don’t know who is going to get the contract. We ______ get it but nothing is sure.

　　A. must B. can’t C. might D. needn’t

　　23. They started off at about 5 o’clock in the morning. They should ______ there by now.

　　A.arrive B. have been arriving C. have arrived D. be arriving

　　24. 我们不应当责备她，她已经尽了最大的努力。[We shouldn’t have blamed her, for she has tried her best.]

　　25. -you realize that you were driving at 100 miles per hour, don’t you?

　　-No, officer. I ______ have been, this car can’t do more than 70.

　　A. needn’t B. shouldn’t C. couldn’t D. might not

　　26. -I saw Mary in the library yesterday. -You ______ her, she is still in hospital.

　　A. mustn’t have seen B. could not see C. can’t have seen D. must not see

　　27. New ideas sometimes have wait for years before they are fully accepted.

　　28. A friend ______ said to me the other day: “I don’t mind eating these foods, but why ______ to taste so awful?”

　　A. of my…they have B. of me…they are C. for me…are they D. of mine…do they have

　　29. “Do you have to leave?” “Sorry, but I really ______.”

　　A. have B. had to C. do so D. must

　　30. I want to go to see the doctor, but you ______ with me.

　　A. need not go B. need not to go C. do not need go D. need go not

　　参考答案：

　　1. A 2.A 3.D 4.A 5.D 6.A 7.C 9.D 10.D 11.B 12.C 13.D: answering 14.A 15.C 16.C 17.B 18.A 19.C 20.D: must have gone 22.C 23.C 25.C 26.C 27.B: have to wait 28.D 29. D 30. A

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