◎ 题干
         my homework for two hours and I won't stop until I finish it.

A. have done        
B. had done        
C. have been doing    
D. did
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“I my homework for two hours and I won't stop until I finish it.[ ]A. have done B. had done. C. have been doingD. did…”主要考查了你对  【现在完成进行时】  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。