阿摩線上測驗
24. What does it mean to say that something is at your disposal?
(A) You are free to use it.
(B) You can find it everywhere.
(C) You know everything about it.
(D) You can buy it at a lower price.
答案：登入後查看
統計： A(651), B(37), C(56), D(38), E(0) #1789743
統計： A(651), B(37), C(56), D(38), E(0) #1789743