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：

标签： had , he , until

同类题型

Let’s finish off the rest of the cake.–None for me, thanks. I _____ more than enough.

Now, I want you to answer my questions one _____ one.[ ]

Do you know the man is reading the book over there? —Yes, he’s Mr. Green, our PE teacher.

The accident happened_____ a cold wet morning.[ ]

─Let’s play soccer.─That good.