阿摩線上測驗
13. Our building has 24-hour security as well as a very helpful _.
(A) pilot
(B) concierge
(C) charger
(D) character
答案：登入後查看
統計： A(1), B(1), C(1), D(0), E(0) #3359988
統計： A(1), B(1), C(1), D(0), E(0) #3359988
