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    No sooner at the desk than the telephone rang. A. had he sat down B. did he sat down C. he had sat down D. he sat down 【查看更多】

     

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    No sooner ________ at the desk ________ the telephone rang．

    [　　]
    A．

    had he sat down; than

    B．

    did he sat down; than

    C．

    had he sat down; when

    D．

    he sat down; when

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