阿摩線上測驗
120.
The new software program has significantly _____ the process of invoicing clients.
(A)to simplify
(B)been simplified
(C)simplified
(D)simplifying
答案：登入後查看
統計： A(8), B(59), C(148), D(19), E(0) #3084379
統計： A(8), B(59), C(148), D(19), E(0) #3084379
