◎ 题干
— Hello, I ____ you ____ in London, how long have you been here?   
— I came here last week. 
[     ]
A. don't know; were    
B. didn't know; were
C. haven't known; are  
D. hadn't known; are  
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Hello, I ____ you ____ in London, how long have you been here?— I came here last week. [ ]A. don't know; were B. didn't know; were C. haven't known; …”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。