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    ( )While to the radio, the girl couldn’t help laughing. A. listened B. listening C. have listened D. listens 【查看更多】

     

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    While __________ to the radio,the girl couldn't help laughing.

    A. listened　　　　 B. listening　　　　　　C. having listened　　 D. listens

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    While ________ to the radio, the girl couldn't help laughing.

    [　　]

    A．listened
    B．listening
    C．having listened
    D．listens

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