—Areyougoingcampingthisafternoon?—Atyphooniscoming.I’mn...

问题详情：

—Are you going camping this afternoon?

—A typhoon is coming. I’m not sure       the road to the mountains will be closed.

A. Which  B. what   C. whether     D. why

【回答】

C

知识点：连词

题型：选择题