阿摩線上測驗
120. Requests for vacation time must be submitted to the supervisor at least two weeks_______advance.
(A) at
(B) on
(C) for
(D) in
答案：登入後查看
統計： A(23), B(46), C(98), D(520), E(0) #3823420
統計： A(23), B(46), C(98), D(520), E(0) #3823420
