问题

_________ did the students realize that they were mistaken about spiders.

A:It was until then
B:It was not until then
C:Not until then
D:Not until when

正确答案是：

同类题型

What did you do yesterday—I TVwith my mother

106 Where are my keys They seem to have____

I was sleepy. I decided to make myself some coffee so I could work.

On weekends, we like TV at home.

Judging from the date _______ on the gold coin, we can tell that it was made 500 years ago[ ]