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    科目： 来源： 题型：单选题

    ________ to the tower building, from where you can see the whole town.


    1. A.
      Get
    2. B.
      To get
    3. C.
      Getting
    4. D.
      Got

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    科目： 来源： 题型：单选题

    ________, so I had to wait for my wife back.


    1. A.
      Because my key was lost
    2. B.
      My key was lost
    3. C.
      Losing my key
    4. D.
      Having lost my key

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    科目： 来源： 题型：单选题

    Noise, in the technical sense, implies a random chaotic disturbance _______.


    1. A.
      usually does not want
    2. B.
      usually is unwanted
    3. C.
      that one does not usually want it
    4. D.
      that is usually unwanted

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    科目： 来源： 题型：单选题

    That tree is killing the grass; you ____ cut it down.


    1. A.
      would
    2. B.
      should
    3. C.
      must
    4. D.
      will

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    科目： 来源： 题型：单选题

    Mary is very wet . She ______ in the lake.


    1. A.
      can have fallen
    2. B.
      must have fallen
    3. C.
      had to fall
    4. D.
      seemed to fall

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    科目： 来源： 题型：单选题

    When the fire broke out, people ________ to the exit.


    1. A.
      went
    2. B.
      walked
    3. C.
      rushed
    4. D.
      left

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    科目： 来源： 题型：单选题

    The scientists are still working ________ inventing new methods of reaching outer space.


    1. A.
      on
    2. B.
      off
    3. C.
      by
    4. D.
      to

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    科目： 来源： 题型：单选题

    It must have rained last night, ________ the ground is wet now.


    1. A.
      for
    2. B.
      because
    3. C.
      since
    4. D.
      now that

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    科目： 来源： 题型：单选题

    The dog seemed very quiet, but I still dared not ________ to upset it．


    1. A.
      to do a thing
    2. B.
      do anything
    3. C.
      to do something
    4. D.
      do nothing

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    科目： 来源： 题型：单选题

    Sylvia is considered ________ the best singer in the group now.


    1. A.
      to have been
    2. B.
      having been
    3. C.
      being
    4. D.
      to be

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