I’M SURE I LOCKED THE DOOR. I CLEARLY REMEMBER ………… IT. A. LOCKING...
12. I’m sure I locked the door. I clearly remember ………… it.
A. locking
B. to lock
C. to have locked
D. to be locked
12. I’m sure I locked the door. I clearly remember ………… it.
A. locking
B. to lock
C. to have locked
D. to be locked