I soon found that the work I was doing had already been done by someone else,_________, I was wasting my time.

试卷相关题目

• 1Waste has now become ________ to life and many wild animals are ________.

  A.dangerous; in the danger

  B.a danger; in danger

  C.danger; in danger

  D.a danger; dangerous

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• 2The teacher apologized ________ late.

  A.to the students to arrive

  B.for the students to arrive

  C.to the students for arriving

  D.for the students for arriving

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• 3The wheel of the history can't be stopped ________ forward.

  A.to go

  B.from to go

  C.from going

  D.go

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• 4Her kindness ____ her beauty.

  A.added

  B.added to

  C.added up to

  D.was added to

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• 5You should ________ hidden dangers.

  A.keep an eye out for

  B.keep an eye on

  C.fix your eyes to

  D.have your eye for

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• 6________ the new computer， passengers can now buy their aeroplane tickets faster than before. 

  A.Thanks to

  B.Thanks for

  C.Thank to

  D.Thank for

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• 7That night it ________ him a long while ________.

  A.takes ;to sleep

  B.take ;to sleep

  C.took ;sleeping

  D.took ;to sleep

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• 8Would you please ________.

  A.to introduce your friend Jack to me

  B.introduce me to your friend Jack

  C.introduce your friend Jack me

  D.introduce me your friend Jack

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• 9How did the matter with machine ________ ?

  A.come about

  B.on

  C.from

  D.know about

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• 10Will you please ________ that she returned?

  A.be sure

  B.make sure

  C.for sure

  D.feel sure

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