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        1. 18.When he was a child.he swim in this river. A.uses to B.doesn′t use to C.used to D.was used to 查看更多

           

          題目列表(包括答案和解析)

          When he was a child,he _______ swim in this river.

          A.uses to    B.doesn′t use to     C.used to           D.was used to

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