问题

Not until to do my homework how much time I had wasted playing computer games.

A:I began I realized
B:I began did I realize
C:did I begin I realized
D:did I begin did I realize

正确答案是：

同类题型

I had thought that he ___ for a least twenty years

What color is the ruler——_________.

I’m sorry. I ___________ at you theother day.— Forget it. I was a bit out of controlmyself.

It’s quite common in Britain to say “Thank you” to the drivers __people get off the bus

Here some photos ofyou. —Thanks.