阿摩線上測驗
20. The boss promises to make a payment _____ he gets the money.
(A) until
(B) even if
(C) unless
(D) as soon as
答案：登入後查看
統計： A(39), B(18), C(8), D(199), E(0) #3235476
統計： A(39), B(18), C(8), D(199), E(0) #3235476
