阿摩線上測驗
111. All participants are asked to _______ from using their mobile phones during the performance.
(A) restrict
(B) prohibit
(C) refrain
(D) prevent
答案：登入後查看
統計： A(35), B(80), C(96), D(28), E(0) #3805119
統計： A(35), B(80), C(96), D(28), E(0) #3805119
