阿摩線上測驗
22. I forgot _____ the door, so I went back home and locked it the second time.
(A) to lock
(B) locking
(C) lock
(D) locks
(E) of locking
答案：登入後查看
統計： A(51), B(54), C(0), D(0), E(2) #2349767
統計： A(51), B(54), C(0), D(0), E(2) #2349767
