______ into use in April 2000, the hotline was meant for residents reporting water and heating supplybreakdowns.   

试卷相关题目

• 1Fully ________ with my office work, I have little time for housework.    

  A.occupy

  B.occupied

  C.occupying

  D.to occupy

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• 2The Internet gives people the chance to have the information ______to them quickly and cheaply.

  A.deliver

  B.delivering

  C.delivered

  D.to deliver

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• 3______ by greater demand of vegetables, farmers have built more green houses.

  A.Driven

  B.Being driven

  C.To drive

  D.Having driven

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• 4Sometimes ________ English is quite different from _______ English in many ways.

  A.speaking, writing

  B.spoken, written

  C.speaking, written

  D.spoken, writing

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• 5Though ______ to a higher position, she still didn't content herself.

  A.promoting

  B.being promoted

  C.having promoted

  D.promoted

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• 6When first _____ to the market,these products en-joyed great success.     

  A.introducing

  B.introduced

  C.introduce

  D.being introduced

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