问题

Not until they left school _________ how much their teachers loved them and helped them.

A:they realized
B:did they realize
C:they would realize
D:had they realized

正确答案是：

同类题型

I travel to the Binhai New Area by light railway every day, _____ do many businessmen who live in downtown Tianjin

How can I get some ______ about the 2016 Olympic Games—Why not search the Internet

You should save some money __________ you can buy a gift for your mother.

child is ________, with theirown needs, preferences and talents.

They heard the party was because of the exam.