Not until he left home the importance of his family.A. he realisedB. did he realiseC. he

问题补充：

Not until he left home the importance of his family.

A. he realised

B. did he realise

C. he did realise

D. realised he

答案：

A. he realised

B. did he realise

C. he did realise

D. realised he

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