阿摩線上測驗
29. Thirty years ago, it was hard for mothers ____ babies’ diapers in
public restrooms.
(A) change
(B) to change
(C) to changing
(D) changing
答案：登入後查看
統計： A(3), B(33), C(2), D(9), E(0) #3492312
統計： A(3), B(33), C(2), D(9), E(0) #3492312
