阿摩線上測驗
23. _____ your encouragement, I would have given up.
(A) If not by
(B) If it was not
(C) Was it not with
(D) Had it not been for
答案：登入後查看
統計： A(31), B(51), C(18), D(144), E(0) #2647740
統計： A(31), B(51), C(18), D(144), E(0) #2647740
