阿摩線上測驗
25. We need to _______ an immediate practical solution before the problem gets worse.
(A) show up
(B) work out
(C) scale up
(D) fall out
答案：登入後查看
統計： A(0), B(1), C(0), D(0), E(0) #3354327
統計： A(0), B(1), C(0), D(0), E(0) #3354327
