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    Jack asked his brother Betty. A. did he know B. if he knows C. does he know D. whether he knew 【查看更多】

     

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    Jack asked his brother       Betty.

    A. did he know     B. if he knows      C. does he know    D. whether he knew

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     Jack asked his brother       Betty.

    A. did he know    B. if he knows      C. does he know    D. whether he knew

     

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