So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ______.

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• 1—The contest is so easy, but you fail to pass it． —I'm sorry it ______ be this way．

  A.need

  B.should

  C.may

  D.would

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• 2Don't come this morning. I would rather you______ the day after tomorrow.

  A.come

  B.came

  C.are to come

  D.will come

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• 3—Sorry, Mr. Wang. I didn't finish the assignment yesterday. Oh, you ________ have done it as yesterday was the deadline.

  A.must

  B.mustn't

  C.should

  D.shouldn't

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• 4It is strongly suggested that measures________factories to pour waste into rivers by the government.

  A.be taken to prevent

  B.be taken to forbid

  C.are taken to prevent

  D.are taken to forbid

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• 5There was plenty of time. She ______ .

  A.mustn't have hurried

  B.couldn't have hurried

  C.must not hurry

  D.needn't have hurried.

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• 6--- She has been ill for a week. ----- I _____ with her at noon tomorrow.

  A.stayed

  B.stay

  C.am staying

  D.shall be staying

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• 7It was Mr Zhang that helped us out of the trouble. Without his help, we ______ it so easily.

  A.can't manage

  B.mustn't have managed

  C.couldn't have managed

  D.couldn't manage

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• 8Look at the trouble I'm in. If only I ________ your suggestions.

  A.followed

  B.would followed

  C.had followed

  D.should followed

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• 9The boy suggested that Tom ______ the problem another way, and Tom's expression suggested that he_________.

  A.should solve; agreed

  B.solve; agree

  C.solved; should agree

  D.solved; agreed

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• 10It is required that students _________ mobile phones at school, so seldom _________ them using one.

  A.don't use; will you see

  B.should not use; you will see

  C.not use; will you see

  D.can't use; will you see

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