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    The boy was seen the piano at 9 yesterday evening. A.to play B.play C.playing D.played 提示:从题干中来捕捉信息能够快捷的选出答案. 【查看更多】

     

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    The boy was seen ______ the piano at 9 yesterday evening.

    A. to play 　　　B. play 　　　　　 C. playing 　　　　　　D. played

     

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