阿摩線上測驗
16 When travelling, tourists should stay ________ in big cities and keep themselves protected from crime.
(A) irrelevant
(B) outrageous
(C) clinical
(D) vigilant
答案：登入後查看
統計： A(0), B(3), C(4), D(31), E(0) #2996078
統計： A(0), B(3), C(4), D(31), E(0) #2996078
