题干


We were swimming in the lake _______ the storm started.

A:whe

B:suddenly

C:until

D:before

上一题 下一题 0.0难度 选择题 更新时间:2016-03-09 04:16:33

答案(点此获取答案解析)

A

同类题3

— Good-bye ! I’m going back to my hometown this afternoon.
—________