173. What is true about the voucher?
(A) It can be given to a friend.
(B) It is valid for one year.
(C) It can be exchanged for $150 cash.
(D) It can be used on any airline.
答案:登入後查看
統計: A(2), B(83), C(8), D(8), E(0) #3823473
統計: A(2), B(83), C(8), D(8), E(0) #3823473