问题

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 begun

正确答案是：

同类题型

Examtakers’ “virtue” will be taken into ________ in the future nationwide public servants’ exam.

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The new bridge over the Jin Shui River last year, which makes it very easy to go to the city center.

In those days, he would go to Mr. Black and his family, __________.