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    There are many children on the playground now. A.playing B.play C.to play D.plays 答案:A There be+主语+v.-ing结构. 【查看更多】

     

    题目列表(包括答案和解析)

    There are many children         on the playground now.

    A．playing

    B．play

    C．to play

    D．plays

     

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