阿摩線上測驗
20. We left our classroom with the door _______. That’s why a thief got into the classroom easily and stole several wallets.
(A) opening
(B) opened
(C) open
(D) being opened
答案：登入後查看
統計： A(44), B(73), C(112), D(32), E(0) #3357928
統計： A(44), B(73), C(112), D(32), E(0) #3357928
