阿摩線上測驗
5. I want to go camping in the mountains this afternoon, but a typhoon is coming. I’m not sure _____ the road to the mountains will be closed.
(A) how
(B) what
(C) whether
(D) why
答案：登入後查看
統計： A(2), B(6), C(36), D(2), E(0) #2344167
統計： A(2), B(6), C(36), D(2), E(0) #2344167