阿摩線上測驗
8. She ________ on this project for several weeks now.
(A) worked
(B) is working
(C) had worked
(D) has been working
答案：登入後查看
統計： A(2), B(54), C(22), D(337), E(0) #3153134
統計： A(2), B(54), C(22), D(337), E(0) #3153134
