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    9．I was doing my homework last night I heard a cry help. A．then; of B．while; in C．at the same time; to D．when; for 【查看更多】

     

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    I was doing my homework last night ________ I heard a cry ________ help．

    [　　]

    A．then; of

    B．while; in

    C．at the same time; to

    D．when; for

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    I was doing my homework last night ________ I heard a cry ________ help．


    1. A.
      then; of
    2. B.
      while; in
    3. C.
      at the same time; to
    4. D.
      when; for

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    I was doing my homework last night, _________ I heard a cry for help．

    [　　]

    A．when　　　B．then　　　C．which　　　D．while

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