阿摩線上測驗
32. You should book your tickets ______ to ensure you get the best seats.
(A)in advance
(B)in address
(C)in amount
(D)in account
答案：登入後查看
統計： A(235), B(18), C(15), D(43), E(0) #3712802
統計： A(235), B(18), C(15), D(43), E(0) #3712802
