阿摩線上測驗
45.Online classes ________ enabling teachers and students to communicate, even when they are across the world from each other.
(A) take care of
(B) make up
(C) make an appointment to
(D) hold the promise of
答案：登入後查看
統計： A(0), B(19), C(37), D(24), E(0) #664960
統計： A(0), B(19), C(37), D(24), E(0) #664960
