______ the situation become worse, call me at once.

试卷相关题目

• 1A few minutes earlier and we _____ the rain.

  A.have caught

  B.had caught

  C.could have caught

  D.were to catch

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• 2You _______ have told him my comment on him. Now, he is very angry with me.

  A.needn't

  B.couldn't

  C.shouldn't

  D.mustn't

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• 3It's nearly 7 o'clock. Helen _______ come, but let's wait for her for another 5 to 7 minutes.

  A.couldn't

  B.can't

  C.mustn't

  D.may not

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• 4Even though “faraway” countries now seem closer, thanks to air travel, they _____ still be different from your home country.

  A.must

  B.may

  C.should

  D.shall

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• 5Although James Cook ______ the first westerner to have discovered Australia,New Zealand and Hawaii,his travels led to the creation of more accurate and reliable maps for vast parts of the world.

  A.isn't

  B.wasn't

  C.must have been

  D.may not have been

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• 6I'd rather he ______ tomorrow afternoon

  A.will come

  B.comes

  C.coming

  D.came

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• 7He _______ have escaped, but he chose to stay and fight.

  A.must

  B.could

  C.will

  D.need

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• 8You _____ Jim anything about it. It was none of his business.

  A.needn't have told

  B.needn't tell

  C.mustn't have told

  D.mustn't tell

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• 9Although some boys in his situation ______ to crime to get money for food and clothing, Louis never did.

  A.might have turned

  B.might be turning

  C.had turned

  D.will turned

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• 10Terribly sorry, I came home at last. I ______of the supermarket ______so crowded.

  A.should have thought; being

  B.should think; being

  C.could have thought; was

  D.could think; was

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