阿摩線上測驗
29. He showed his language proficiency ______ when applying for a customer service job at the airport.
(A) certificate
(B) responsibility
(C) acceptance
(D) framework
答案：登入後查看
統計： A(190), B(71), C(40), D(37), E(0) #3863033
統計： A(190), B(71), C(40), D(37), E(0) #3863033
