阿摩線上測驗
16. Difficult road conditions caused by snowstorms, heavy rain, fog, and a _______ road surface are challenging to drivers.
(A) familiar
(B) slippery
(C) truthful
(D) valuable
答案：登入後查看
統計： A(3), B(21), C(3), D(4), E(0) #2810811
統計： A(3), B(21), C(3), D(4), E(0) #2810811
