阿摩線上測驗
21. All children _____ in this event will receive a gift bag from the organization.
(A) participating
(B) participated
(C) who participating
(D) be participated
答案：登入後查看
統計： A(165), B(32), C(60), D(18), E(0) #3017849
統計： A(165), B(32), C(60), D(18), E(0) #3017849
