阿摩線上測驗
13. We should _____ flights 48 hours before departure to avoid last-minute changes or cancellations.
(A) reform
(B) conform
(C) confirm
(D) inform
答案：登入後查看
統計： A(11), B(56), C(151), D(14), E(0) #3920212
統計： A(11), B(56), C(151), D(14), E(0) #3920212
