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    It Jack twenty minutes the math problem yesterday. A. took; to work out B. takes; worked out C. has taken; work out D. is taking; working out 【查看更多】

     

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    It ____ Jack twenty minutes ____ the math problem yesterday.

    A. took; to work out                                           B. takes; worked out  

    C. has taken; work out                                      D. is taking; working out

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    It ____ Jack twenty minutes ____ the math problem yesterday.

    A．took; to work out

    B．takes; worked out

    C．has taken; work out

    D．is taking; working out

     

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