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    49．A．knows B．to know C．know D．knew 【查看更多】

     

    题目列表(包括答案和解析)

    Every boy and girl ________ it.

    [　　]

    A．know

    B．knows

    C．knew

    D．to know

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    If she        the answer to the question, she would tell you．

    A．knows           B．will know          C．have known          D．knew

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    You need ________ about some table manners.

    [　　]

    A．know

    B．knew

    C．knows

    D．to know

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    Tom seems ______what he is doing．

    A．to know    B．knows    C．knowing   D．knew

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    The manager, like all his technicians, ________ how to operate the machine.

    [　　]

    A．knew　　B．know　　C．knows　　D．will know

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