◎ 题干
—_      _ you visit your teachers on Teachers' Day?                
—Yes, I did.          
[     ]
A. Do      
B. Does        
C. Doing        
D. Did
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“—_ _ you visit your teachers on Teachers' Day? —Yes, I did.[ ]A. DoB. Does C. Doing D. Did…”主要考查了你对  【一般过去时】  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。