◎ 题干
-Do you know          going to stay in London?          
-No, I don't. Maybe a few days.        
[     ]
A. when he is
B. how long he is        
C. when is he
D. how long is he
◎ 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“-Do you knowgoing to stay in London? -No, I don't. Maybe a few days.[ ]A. when he isB. how long he isC. when is heD. how long is he…”主要考查了你对  【一般疑问句】【宾语从句】  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。