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    ---What have you hydrogen, Mary? ---Balloons. A. have filled with B. had filled with C. had filled of D. to have filled 【查看更多】

     

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     ---What have you _____ hydrogen, Mary?

    ---Balloons.

           A. have filled with         B. had filled with           C. had filled of              D. to have filled

     

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    --What have you ________ hydrogen, Mary?

    --Balloons.

    [　　]

    A．have filled with
    B．had filled of
    C．had filled with
    D．to be filled

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    --What have you ________ hydrogen, Mary?

    --Balloons.

    [　　]

    A．have filled with
    B．had filled of
    C．had filled with
    D．to be filled

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