It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off．

试卷相关题目

• 1—How much shall I pay for the food? —You ________ .This is free of charge.

  A.mustn't

  B.needn't

  C.shouldn't

  D.couldn't

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• 2He﹍﹍the job well, but he ________ so careless.

  A.had done; had been

  B.could do; was

  C.could have done; was

  D.hadn't done; had been

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• 3The WTO urged that all the countries ________ measures to prevent swine flu spreading.

  A.take

  B.must take

  C.are to take

  D.took

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• 4He travelled to many mountains and saw many poor children, which _______his life.

  A.would change

  B.had changed

  C.was to change

  D.was changing

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• 5—My goodness! The accident might not have happened if we had done it more carefully. —But we ________ .

  A.haven't

  B.wouldn't

  C.hadn't

  D.didn't

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• 6----- You shouldn't have talked back to our teacher like that. It was awfully impolite. ----- You are right. I _________ crazy at that moment.

  A.could have been

  B.can be

  C.must have been

  D.should have been

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• 7My most devoted friend, Professor Yang, _______ often go hiking when he lived in the mountain that was covered with forest.

  A.would

  B.should

  C.could

  D.might

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• 8Tom, don't worry. You _______ get the book tomorrow morning.

  A.may

  B.will

  C.shall

  D.can

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