问题

twelve o’clock, I think I must be offnow.” “Oh, reallyI ______ it at all.”

A:don’t realize
B:haven’t realized
C:didn’t realize
D:hadn’t realized

正确答案是：

同类题型

Excuse me, Mr. Green. How can I my spoken English—You can join an English club.

of money every month.I cannot save a single penny. [ ]

This article is too hard to understand.—Yes, _______ it’s very short and there are few new words in it.

_____ the Great Green Wall, the land produces (生产出) more crops.

He always tells funny things to me and always ___________.