阿摩線上測驗
17. By the time we arrived at the station, the train _____.
(A)leave
(B)left
(C)leaving
(D)had left
答案：登入後查看
統計： A(1), B(9), C(1), D(62), E(0) #3867819
統計： A(1), B(9), C(1), D(62), E(0) #3867819
