阿摩線上測驗
15. Either the engineers or the manager _______ responsible for the oversight.
(A) have
(B) are
(C) is
(D) has
答案：登入後查看
統計： A(2), B(7), C(17), D(5), E(0) #4062393
統計： A(2), B(7), C(17), D(5), E(0) #4062393
