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    The house could fall down soon if no one some quick repair work. A. has done B. is doing C. does． D. had done 【查看更多】

     

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    The house could fall down soon if no one       some quick repair work.


    1. A.
      has done
    2. B.
      is doing
    3. C.
      does
    4. D.
      had done

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    The house could fall down soon if no one _____some quick repair work 

    [     ]

    A. has done
    B. is doing
    C. does
    D. had done

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    The house could fall down soon if no one _____ some quick repair work.

    [     ]

    A. has done
    B. is doing
    C. does
    D. had done

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    The house could fall down soon if no one ______ some quick repair work.
    A. has done
    B. is doing
    C. does
    D. had done

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    The house could fall down soon if no one. _______ some quick repair work.

    A. has done           B. is doing

    C. does              D. had done

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