阿摩線上測驗
22. _____ in Africa as a volunteer, she understood the real impact of poverty.
(A) Being worked
(B) Had working
(C) Had been working
(D) Have been working
(E) Having worked
答案：登入後查看
統計： A(1), B(2), C(5), D(1), E(13) #3431573
統計： A(1), B(2), C(5), D(1), E(13) #3431573
