阿摩線上測驗
40.I paid the money back to you already, _____?
(A) did I
(B) didn’t I
(C) have I
(D) haven’t I
答案：登入後查看
統計： A(8), B(39), C(0), D(2), E(0) #3276207
統計： A(8), B(39), C(0), D(2), E(0) #3276207
