--- I’m sorry, but there is no smoking on this flight.
--- Oh, I _________ that.Sorry, I won’t again.
A.don’t know | B.didn’t know | C.won’t know | D.haven’t known |
相关知识点
推荐套卷
--- I’m sorry, but there is no smoking on this flight.
--- Oh, I _________ that.Sorry, I won’t again.
A.don’t know | B.didn’t know | C.won’t know | D.haven’t known |