No such authorization ______ be given without the president's written permission.

试卷相关题目

• 1I got close enough to hear them speaking Chinese, and I said “Ni Hao ” just as I _______ do in Chin

  A.A.must

  B.might

  C.can

  D.should

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• 2Being examined twice a year，whether it is a car or a bus or a truck，is the rule that every driver _______obey in this city.

  A.shall

  B.can

  C.ought to

  D.need

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• 3The boss has given everyone a special holiday, so we ________ go to work tomorrow.   

  A.can't

  B.mustn't

  C.needn't

  D.shouldn't

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• 4Students ___________ remain in their seats until all the papers have been collected.

  A.may

  B.shall

  C.need

  D.can

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• 5Some young people these days just ______ go out of their homes to contact the real world．

  A.mustn't

  B.won't

  C.mightn't

  D.shouldn't

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• 6We ________ last night, but we went to the concert instead, so we failed in the examination.

  A.should study

  B.must study

  C.should have studied

  D.must have studied

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• 7Last night，he hurt his foot，but at last he ________get home safely．

  A.could

  B.need

  C.was able to

  D.dare

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• 8You ________ pay too much attention to your reading skill, as it is so important

  A.can't

  B.should

  C.must

  D.needn't

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• 9Man ________ die without air or water.

  A.will

  B.shall

  C.should

  D.would

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• 10The boss stormed out of the office before I ________ say a word.

  A.could

  B.would

  C.dared

  D.might

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