问题

I’m sorry, but there’s no smoking room in this section on the train.—Oh, I _____ that, and I won’t smoke again[ ]

A: don't know
B: won't know
C: didn't know
D: haven't known

正确答案是：

同类题型

Yesterday I lost my pencilsharpener. I couldn’t find_______.—Oh, it’s a pity. You’d better buy ________this afternoon.

Daddy, can you fix the toy car for me— Well, you can do it yourself. Read these carefully first.

The little boy is crying at first, but at last, he become ______.

The women with two children ____for one and a half hours.

______ can you expect to get a payrise