_______such heavy pollution already, it may now be too late to clean up the river.

试卷相关题目

• 1________in the queue for half an hour，Tom suddenly realized that he had left his wallet at home.

  A.To wait

  B.Have waited

  C.Having waited

  D.To have waited

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• 2Johnson,_______ to grasp the chance to become a doctor,decided to take up teaching.

  A.fail

  B.failed

  C.to fail

  D.having failed

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• 3This kind of bananas _______ nice. I want to taste one.  

  A.sound

  B.smell

  C.looks

  D.tastes

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• 4When the headmaster announced his plan in public at the school's opening ceremony, the ________of the students present________ against it.

  A.majority; were

  B.most; were

  C.most; did

  D.majority; did

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• 5She went to the supermarket and _____ what she needed, she returned home, light-hearted.

  A.bought

  B.having bought

  C.buying

  D.to have bought

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• 6He was very angry when his car broke down,  ________it serviced only a week before.

  A.having had

  B.having been had

  C.to be had

  D.having

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• 7______ the program, they have to stay there for another two weeks.  

  A.Not completing

  B.Not completed

  C.Not having completed

  D.Having completed

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• 8____, they were forbidden to leave the company.

  A.Not having finished their jobs

  B.Having not finished their jobs

  C.Not finishing their jobs

  D.Not finished their jobs

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• 9The storm left, _____ a lot of damage to this are

  A.A.caused

  B.to have caused

  C.to cause

  D.having caused

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• 10_______ a reply, he decided to write again.

  A.Not receiving

  B.Receiving not

  C.Not having received

  D.Having not received

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