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

试卷相关题目

• 1— Do you know where David is? I couldn't find him anywhere. — Well. He _____ have gone far-he told me he would come back in 5 minutes.

  A.shouldn't

  B.mustn't

  C.can't

  D.wouldn't

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• 2— Could I talk with you right now? I have something urgent. — If you _____, please come to my office.

  A.can

  B.may

  C.must

  D.should

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• 3You _____ have lost your temper at that time. After all, she is only a child.

  A.shouldn't

  B.can't

  C.may not

  D.mustn't

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• 4Take the lift to the eighth floor and turn right. You _____ have any trouble finding my office.

  A.needn't

  B.mustn't

  C.don't

  D.shouldn't

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• 5The police still have found the lost child, but they're doing all what they _____.

  A.can

  B.may

  C.must

  D.should

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• 6— 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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• 7— 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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• 8— 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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• 9May 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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• 10For the engine to work, the green button _____ be in the 'on' position.

  A.can

  B.would

  C.must

  D.might

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