◎ 题干
When I got on the bus, I ________ I had left my wallet at home.
[     ]
A. was realizing  
B. realized
C. have realized  
D. would realize
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“When I got on the bus, I ________ I had left my wallet at home.[ ]A. was realizingB. realizedC. have realizedD. would realize…”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。