问题

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

A:did he begin
B:egun
C:he began
D:he had begun

正确答案是：

同类题型

She wD．devoted

Your idea（想法） very good.

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Where has all the time gone I can still remember the day when I first came to this school, but now I am about to leave.-_______.

Not until years later _____ their leading position in the marketplace with the creation of Swatch watches.