◎ 题干
Only when _____ home_____ that he had left his bag in the taxi he had taken.

[     ]

A. he returned; did he realize
B. did he return; did he realize
C. he returned; he realized
D. did he return; he realized
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Only when _____ home_____ that he had left his bag in the taxi he had taken.[ ]A. he returned; did he realize B. did he return; did he realize C. he return…”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。