The biggest problem for most plants, which _____ just get up and run away when threatened, is that animals like to eat them.

试卷相关题目

• 1It _____ have been Tom that parked the car here, as he is the only one with a car.

  A.may

  B.can

  C.must

  D.should

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• 2Persons under 16 _____ not be employed in our country.

  A.shall

  B.can

  C.may

  D.will

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• 3Some people who don't like to talk much are not necessarily shy; they _____ just be quiet people.

  A.must

  B.may

  C.should

  D.would

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• 4— Write to me when you get home. — I _____.

  A.must

  B.should

  C.can

  D.will

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• 5No driving after drinking is a rule that every driver _____ obey in our country.

  A.will

  B.shall

  C.may

  D.can

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• 6Don't worry. I've just sent an ambulance to you. They ____ be there any second.

  A.could

  B.might

  C.would

  D.should

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• 7If it were not for the fact that she _____ sing, I would invite her to the party.

  A.couldn't

  B.shouldn't

  C.can't

  D.might not

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• 8She _____ have left school, for her bike is still here. 

  A.can't

  B.wouldn't

  C.shouldn't

  D.needn't

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• 9— I promise my daughter _____ get a nice present on her birthday. — I think it will be a big surprise to her.

  A.must

  B.shall

  C.might

  D.need

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• 10— Will you stay for dinner?— Sorry, I _____. My sister is coming to see me.

  A.mustn't

  B.can't

  C.needed

  D.shouldn't

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