25. The team made huge ______ to the new data management system.
(A) contribute
(B) contributions
(C) contributing
(D) contributed
答案:登入後查看
統計: A(99), B(314), C(41), D(36), E(0) #3887977
統計: A(99), B(314), C(41), D(36), E(0) #3887977