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Only when I left my parents for Italy ________ how much I loved them.

A.I realize

B.I had realized

C.had I realized

D.did I realize

 

【答案】

D

【解析】本题考查倒装结构和动词的时态。分析句子结构,“only+when状语从句”位于句首时,句子要使用倒装结构,可排除A与B两项。再根据主从句时态一致的原则故选D项,排除C项。要牢记倒装句中的一些固定结构。

 

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