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    Don’t you think you’ve spent too much time playing computer games? Why not spend more time something useful? A. in; on B. in; in C. on; in D. on; on 【查看更多】

     

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    Don't you think you've spent too much time _______ playing computer games? Why not spend more time _______ something useful?


    1. A.
      in; on
    2. B.
      in; in
    3. C.
      on; in
    4. D.
      on; on

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