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 has begun

正确答案是：

同类题型

Frank _____ to see his grandma ifhe _____ free tomorrow.

The old man has run four laps(圈) around the pool, while the younger one was almost after only one lap.[ ]

Do you think it _____ to argue with them?— The question is not worthy _____.

re anything special you’d like for the dinner, Teddy—- Nothing ______, as usual, Mummy

Look!The train is going _____ thetunnel.