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    7．Hardly the phone when another call came in . A．he had hung up B．did he hang up C．had he been hanging up D．had he hung up 【查看更多】

     

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    Hardly ________ the phone when another call came in．

    [　　]

    A．he had hung up

    B．did he hang up

    C．had he been hanging up

    D．had he hung up

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