◎ 题干
While I_________home, I met my teacher.        
[     ]
A. is going                            
B. went      
C. was going                      
D. have gone
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“While I_________home, I met my teacher.[ ]A. is going B. went C. was goingD. have gone…”主要考查了你对  【过去进行时】【状语从句】  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。