For the engine to work, the green button _____ be in the 'on' position.

试卷相关题目

• 1May I take this book out of the reading room? No, you _____. You read it in here.

  A.mightn't

  B.won't

  C.needn't

  D.mustn't

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• 2— How's your tour around the North Lake? Is it beautiful? — It _____ be, but it is now heavily polluted.

  A.will

  B.would

  C.should

  D.must

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• 3— Guess what! I have got A for my term paper. — Great! You _____ read widely and put a lot of work into it.

  A.must

  B.should

  C.must have

  D.should have

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• 4— John, how did your English exam go? — I thought I ____, but in fact I came in the top 10% in the class.

  A.should have failed

  B.couldn't have failed

  C.might have failed

  D.mustn't have failed

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• 5— The terrible accident is under investigation. — Actually,quicker action ____ those workers trapped in the mine.

  A.might have saved

  B.must have saved

  C.ought to have saved

  D.should have saved

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• 6Naturally, after I told her what to do, my daughter _____ go and do the opposite.

  A.may

  B.can

  C.must

  D.should

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• 7It is a set rule that students _____ remain seated until all the papers have been collected.

  A.can

  B.will

  C.shall

  D.may

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• 8I often see lights in that empty house. Do you think I _____ report it to the police?

  A.should

  B.may

  C.will

  D.can

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• 9— Turn off the TV, Jack, _____ your homework now? — Mum, just ten more minutes, please.

  A.Should you be doing

  B.Shouldn't you be doing

  C.Couldn't you be doing

  D.Will you be doing

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• 10— I don't mind telling you what I know.— You _____. I'm not asking you for it.

  A.mustn't

  B.may not

  C.can't

  D.needn't

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