◎ 题干
The other day, when I was shopping, I happened _____ my former teacher who I _____ for many years.  

A. to meet; hadn’t seen  
B. meeting; haven’t seen   
C. to meet; haven’t seen   
D. meeting; hadn’t seen
◎ 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“The other day, when I was shopping, I happened _______ my former teacher who I _______ for many years. [ ]A. to meet; hadn’t seen B. meeting; haven’t seen…”主要考查了你对  【不定式】【过去完成时】  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。