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    科目： 来源： 题型：单选题

    Do not try to repair the computer yourself ________ you are an expert.


    1. A.
      if
    2. B.
      that
    3. C.
      unless
    4. D.
      because

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    科目： 来源： 题型：单选题

    The cars ________ yesterday sell very well．


    1. A.
      what I saw
    2. B.
      that I see
    3. C.
      what I see
    4. D.
      that I saw

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    科目： 来源： 题型：单选题

    Kitty will stay here for ________ to help us.


    1. A.
      sometime
    2. B.
      sometimes
    3. C.
      some time
    4. D.
      some times

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    科目： 来源： 题型：单选题

    I have a science class _______ Monday.


    1. A.
      in
    2. B.
      on
    3. C.
      at
    4. D.
      of

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    科目： 来源： 题型：单选题

    This boat ________ a duck.


    1. A.
      likes
    2. B.
      look likes
    3. C.
      looks like
    4. D.
      looks likes

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    科目： 来源： 题型：单选题

    These are your new trousers. Please________.


    1. A.
      put it on
    2. B.
      put on it
    3. C.
      put them on
    4. D.
      put on them

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    科目： 来源： 题型：单选题

    The shop ________ at six p. m.


    1. A.
      is close
    2. B.
      closed
    3. C.
      closes
    4. D.
      is closing

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    科目： 来源： 题型：单选题

    One of ________ throwing a Frisbee．


    1. A.
      the boys is
    2. B.
      boy is
    3. C.
      the boys
    4. D.
      the boys are

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    科目： 来源： 题型：单选题

    Computers ______ because we can get lots of information.


    1. A.
      are used wide
    2. B.
      is use widely
    3. C.
      is using widely
    4. D.
      are used widely

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    科目： 来源： 题型：单选题

    English ______ a lot for business between different countries.


    1. A.
      uses
    2. B.
      used
    3. C.
      has used
    4. D.
      is used

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