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    Edison asked his father why the hens could hatch eggs he couldn’t. A. as B. and C. when D. while 【查看更多】

     

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    Edison asked his father why the hens could hatch eggs ___he couldn’t.

       A. as      B. and        C. when      D. while

     

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    Edison asked his father why the hens could hatch eggs ___he couldn’t.

       A. as      B. and        C. when      D. while

    查看答案和解析>>

     Edison asked his father why the hens could hatch eggs ___he couldn’t.

       A. as      B. and        C. when      D. while

     

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