阿摩線上測驗
23 It took us no time to clear _______at the border.
(A) costume
(B) costumes
(C) custom
(D) customs
答案：登入後查看
統計： A(6), B(3), C(14), D(37), E(0) #669006
統計： A(6), B(3), C(14), D(37), E(0) #669006
