Everyone _____ do his best to make the world safe and clean.   

试卷相关题目

• 1 －This is a gas station! And you _______ know smoking is forbidden here. －Oh, terribly sorry.

  A.will

  B.can

  C.may

  D.Must

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• 2--- Mum, I am feeling tired and sleepy now. --- You ______ so late last night.

  A.couldn't have stayed up

  B.mustn't have stayed up

  C.shouldn't have stayed up

  D.needn't have stayed up

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• 3---Must I write it now?  ---No, you _______.

  A.can't

  B.don't

  C.needn't

  D.won't

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• 4 Let's go to the library this afternoon, _____?   

  A.shallwe　　

  B.willwe　

  C.canwe

  D.shouldwe

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• 5 ----_______he have been chosen as captain of the Chinese football team? ----Yes, he _____.

  A.Must; must

  B.Can; must

  C.Must; must have

  D.Can; must have

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• 6Mary is very late, she ______.

  A.may miss her train

  B.may have missed her train

  C.must miss her train

  D.could miss her train

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• 7It's high time that Dalai Lama ______ playing politics.

  A.quit

  B.to be quit

  C.quited

  D.quitting

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• 8The missing children haven't been found yet. Something terrible ________ to them.

  A.may happen

  B.should have happened

  C.must happen

  D.might have happened

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• 9The young man insisted that he _____ nothing wrong and _____ free.  

  A.did; set

  B.had done; should be set

  C.should do; be set

  D.had done; must be set

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• 10The fire spread through the hotel very quickly but everyone _____ get out.

  A.had to

  B.would

  C.could

  D.was able to

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