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    Paul doesn’t have to be made . He always works hard. A. study B. to study C. studied D. studying 【查看更多】

     

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     Paul doesn’t have to be made ____________． He always works hard．

         A．study              B．to study            C．studied             D．studying

     

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    Paul doesn’t have to be made ________．He always works hard．

    [　　]

    A．study

    B．to study

    C．studied

    D．studying

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