— Tom graduated from college at a very young age. — Oh, he _____ have been a very smart boy then.

试卷相关题目

• 1_____ anyone phone, tell them I'm in conference.

  A.Would

  B.Shall

  C.Could

  D.Should

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• 2In fact you ____ outside by taxi. My car was here.

  A.couldn't go

  B.mustn't have gone

  C.needn't have gone

  D.needn't go

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• 3Great efforts to increase grain production _____ if food shortages are to be avoided.

  A.could be made

  B.must be made

  C.might be made

  D.would be made

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• 4— Is Jack on duty today? — It _____ be him. It's his turn tomorrow.

  A.mustn't

  B.won't

  C.can't

  D.needn't

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• 5— Who is the girl standing over there? — Well, if you _____ know, her name is Mabel.

  A.may

  B.can

  C.must

  D.shall

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• 6According to the air traffic rules, you _____ switch off your mobile phone before boarding.

  A.may

  B.can

  C.would

  D.should

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• 7— _____ you disturb her with these annoying questions just when she was busy cooking dinner?—  Sorry, I _____ that at that time.

  A.Should; must not have done

  B.Shall; may have done

  C.Must; should do

  D.Must; should not have done

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• 8— I heard they went skiing in the mountains last winter. — It _____ true because there was little snow there.

  A.may not be

  B.won't be

  C.couldn't be

  D.mustn't be

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• 9I told your friend how to get to the hotel, but perhaps I _____ have driven her there.

  A.could

  B.must

  C.might

  D.should

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• 10It _____ sound like a perfect destination, but it is really adventurous to go there.

  A.must

  B.should

  C.can

  D.may

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