Don't use water to put out the fire if oil catches fire. As is known, oil ________ float on water.

试卷相关题目

• 1-----Could I have a look at your i-phone5s, dad? ------Oh, dear, if you_______.

  A.can

  B.must

  C.should

  D.need

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• 2No student______ go out of school for snacks during the break without the teacher's permission.

  A.will

  B.must

  C.shall

  D.may

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• 3My book, The House of Hales, is missing. Who ________ have taken it?

  A.need

  B.must

  C.should

  D.could

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• 4--My computer ____start, no matter how hard I try. --It might have crashed.

  A.won't

  B.shouldn't

  C.mustn't

  D.wouldn't

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• 5（2014年(春)重庆市高三考前冲刺测试卷）She _____ be the wisest woman on this planet, for she has lived Up to the three words 'seize the moment'.

  A.will

  B.must

  C.shall

  D.can

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• 6He ______ have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.

  A.should

  B.must

  C.wouldn't

  D.can't

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• 7—Please don't tell anybody． —I ______ . I promise．

  A.can't

  B.don't

  C.won't

  D.mustn't

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• 8—What did you say to your sister? I saw her crying in the room. — It _________ my fault. I just said hello to her when I met her, nothing else.

  A.must have been

  B.can't have been

  C.oughtn't to be

  D.should have been

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• 9--- I spent two weeks in London last summer. --- Then you must have visited the British Museum during your stay, _______ you?

  A.mustn't

  B.haven't

  C.didn't

  D.hadn't

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• 10He _______that, without any strong evidence, he was sentenced to 10 years in prison by the judge in the trial.

  A.could not have imagined

  B.can not imagine

  C.could have imagined

  D.can have not imagined

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