The doctors are doing all that they _____, but the old man is still not breathing properly.

试卷相关题目

• 1Mary _______ be in the hospital. I saw her play basketball a minute ago.

  A.mustn't

  B.shouldn't

  C.can't

  D.may not

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• 2— Li Lin hasn't turned up yet, but he promised to come to the party. — He ______ home. He is a man of keeping his word.

  A.can't leave

  B.won't be leaving

  C.could have left

  D.must have left

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• 3Mr.Smith is on time for everything. How _______ he be late for the ceremony?

  A.will

  B.can

  C.shall

  D.may

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• 4—How is the debate of your essay? —It ____ well, but I ____one of the key points.

  A.might work; hadn't forgot

  B.needn't have worked; forgot

  C.could have worked; forgot

  D.would work; hadn't forgot

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• 5－Why are you looking so worried? Is there anything I can do for you? －The computer _______ break down when I nearly finished my composition.

  A.can

  B.should

  C.must

  D.dare

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• 6No one _____ be more generous; he has a heart of gold.

  A.could

  B.must

  C.dare

  D.need

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• 7It_______be the vocabulary that caused you the problem in the exercise because you know a lot of words.

  A.may

  B.couldn't

  C.should

  D.needn't

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• 8It _______ come as no surprise that Suri Cruise wants to be an actress, since her father, Tom Cruise, is a Hollywood top star.

  A.can

  B.should

  C.will

  D.must

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• 9The weather turned out to be fine yesterday．I _______ the trouble to carry my umbrella with me．

  A.should have taken

  B.could have taken

  C.needn't have taken

  D.mustn't have taken

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• 10What a pity! Considering his ability and experience, he ____ have done better.

  A.need

  B.must

  C.might

  D.can

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