阿摩線上測驗
34. _____ into one’s room without a knock on the door first is quite impolite.
(A) Go
(B) Went
(C) Going
(D) Gone
答案：登入後查看
統計： A(95), B(35), C(390), D(13), E(0) #3100671
統計： A(95), B(35), C(390), D(13), E(0) #3100671
