◎ 题干
—What a terrible earthquake!
—Yes. It came at about 6.30 this morning. I _____ to the bus stop at that time.
[     ]
A. walk            
B. was walking      
C. walked        
D. am walking
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—What a terrible earthquake!—Yes. It came at about 6.30 this morning. I _____ to the bus stop at that time.[ ]A. walkB. was walking C. walkedD. am walkin…”主要考查了你对  【过去进行时】  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。