—Don’t forget _______ the door when you go out． —OK．I won’t forget it．
A: A．lock
B: B．locking
C: C．to lock
D: D．locks
A: A．lock
B: B．locking
C: C．to lock
D: D．locks
举一反三
- Don’t forget ________ the door before you leave the office. A: to lock B: locking C: locked D: to locking
- Don't forget _________ (lock) the door when you leave the laboratory.
- Don’t forget to lock the door! ______ to lock the door!
- Don"t forget to lock the door ______ you leave the room. A: after B: since C: for D: when
- —Don’t forget to lock the door.— （）. A: No, I won’t. B: Yes, I won’t C: No, I will