练习册

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    I study math by lots of exercises. A. did B. doing C. do 【查看更多】

     

    题目列表(包括答案和解析)

    I study math by ____ lots of exercises.

    A. did     B. doing     C. do

     

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     I study math by ____ lots of exercises.

         A. did     B. doing     C. do

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    I study math by ____ lots of exercises.

         A. did     B. doing     C. do

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    I study math by ____ lots of exercises.
    [     ]
    A. did
    B. doing
    C. do
    D. to do

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     I study math by ____ lots of exercises.

    A．did              B．doing             C．do               D．does

     

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