◎ 题干
I was tired when you saw me yesterday afternoon because I   __.

A. had been running  
B. ran    
C. would run    
D. has run

◎ 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“I was tired when you saw me yesterday afternoon because I __.[ ]A. had been runningB. ranC. would runD. has run …”主要考查了你对  【过去完成进行时】  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。