◎ 题干
Hearing something ________ downstairs, I opened the door and found my brother playing football.
[       ]
A. kicking  
B. to kick
C. being kicked  
D. to be kicked
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Hearing something ________ downstairs, I opened the door and found my brother playing football.[ ]A. kickingB. to kickC. being kickedD. to be kicked…”主要考查了你对  【现在分词的被动式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。