练习册

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    Mario used to in the morning. A.practice swimming B.practicing swimming C.practice swim D.practicing swimming 答案:A used to do sth.过去常做--.所以排出B.D两项.practice后接动词的-ing形式. 【查看更多】

     

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    Mario used to _____________ in the morning.

    A. practice swimming    B. practicing swimming

    C. practice swim        D. practices swimming

     

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     Mario used to _____________ in the morning.      

    A. practice swimming    B. practicing swimming 

    C. practice swim       D. practices  swimming

     

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    Mario used to _______ in the morning.
    [     ]
    A. practice swimming
    B. practicing swimming
    C. practice swim
    D. practices swimming

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    Mario used to _____________ in the morning.

    A. practice swimming                B. practicing swimming

    C. practice swim                   D practices  swimming

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