阿摩線上測驗
18. Our organization is committed _____ education in the community.
(A) to improve
(B) for improving
(C) and improving
(D) to improving
答案：登入後查看
統計： A(6), B(1), C(0), D(3), E(0) #4061415
統計： A(6), B(1), C(0), D(3), E(0) #4061415
