阿摩線上測驗
56. This line has proved so popular that we regret to inform you that _________.
(A)it is no longer in production
(B)it has sold out
(C)it is out of stock
(D)it has been discontinued。
答案：登入後查看
統計： A(1), B(6), C(57), D(3), E(0) #752312
統計： A(1), B(6), C(57), D(3), E(0) #752312
