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    I Mr. Black but I don’t him. A. have heard;hear B. have known;hear C. have known about;know D. have heard;know 答案: C 【查看更多】

     

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    I ________ Mr. Black but I don't ________ him.

    [　　]

    A．have heard, hear

    B．have known, hear

    C．have known about, know

    D．have heard, know

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