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    29．I my face when suddenly someone at the door. A. was washing; knocked B. washed; knocked C. was washing; was knocking D. washed; was knocking 【查看更多】

     

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    I ________ my face when suddenly someone ________ at the door.

    [　　]

    A．washed; knocked
    B．washed; was knocking
    C．was washing; was knocking
    D．was washing; knocked

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