◎ 题干
By the time you arrive in London, we         in Europe for two weeks.
[     ]
A. shall stay        
B. have stayed      
C. will have stayed    
D. have been staying
◎ 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“By the time you arrive in London, we in Europe for two weeks.[ ]A. shall stayB. have stayed C. will have stayed D. have been staying…”主要考查了你对  【现在完成进行时】  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。