40 As a firefighter, I must perform the task that has been _______ upon me.
(A) served
(B) imposed
(C) observed
(D) researched
答案:登入後查看
統計: A(72), B(127), C(56), D(32), E(0) #3118518
統計: A(72), B(127), C(56), D(32), E(0) #3118518