Not until he left his home to know how important the family was for him.A. did he beginB.

发布时间：2020-08-16 17:53:59

Not until he left his home       to know how important the family was for him.
A. did he begin
B. had he began
C. he began
D. he had began

网友回答

(答案→)A. did he begin
B. had he began
C. he began
D. he had began
解析： 略
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