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    E-shopping, when properly , can save us a lot of time and energy. A. being done B. done C. doing D. is done 【查看更多】

     

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     E-shopping, when properly         , can save us a lot of time and energy.

    A. being done                  B. done     C. doing                 D. is done

     

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    E-shopping, when properly         , can save us a lot of time and energy.

    A. being done                  B. done     C. doing                 D. is done

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    E-shopping, when properly ________, can save us a lot of time and energy．

    [　　]
    A．

    being done

    B．

    done

    C．

    doing

    D．

    is done

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    E－shopping, when properly ________, can save us a lot of time and energy．

    [　　]

    A．being done

    B．is done

    C．doing

    D．done

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    E－shopping, when properly ________, can save us a lot of time and energy．

    [　　]
    A．

    being done

    B．

    is done

    C．

    doing

    D．

    done

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