◎ 题干
Only when he met the girl his aunt introduced to him ____ that he had seen her before.  
[    ]
A. he realized    
B. he did realize  
C. realized he      
D. did he realize
◎ 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“Only when he met the girl his aunt introduced to him ____ that he had seen her before. [ ]A. he realizedB. he did realize C. realized heD. did he realize …”主要考查了你对  【部分倒装】  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。