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    You must keep us of how things are going here. A. informed B.informing C. inform D.to inform 【查看更多】

     

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     You must keep us ______ of how things are going here.

    A. informing    B. informed    C. inform    D. to inform

     

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    You must keep us ________ of how things are going here．

    [　　]
    A．

    informing

    B．

    informed

    C．

    inform

    D．

    to inform

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