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    They spent as many hours as they could their lessons. A. to study B. studying C. study D. studied 【查看更多】

     

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    They spent as many hours as they could _____ their lessons. 
    [      ]
    A. to study  
    B. studying        
    C. study     
    D. studied

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    They spent as many hours as they could _____ their lessons.

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

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    They spent as many hours as they could _____ their lessons.

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

     

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    They spent as many hours as they could _____ their lessons．

    　 A． to study 　　　　　　　　　　　　　　　　　　　　　　　 B． studying 　　　　　 　　　　　　　　　

    C． study D． studied

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    They spent as many hours as they could ________ their lessons．

    [　　]
    A．

    to study

    B．

    study

    C．

    studying

    D．

    studies

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