Don't forget _________ (lock) the door when you leave the laboratory.
举一反三
- Don"t forget to lock the door ______ you leave the room. A: after B: since C: for D: when
- Don’t forget (lock) the doors when you leave your car in the parking lot.
- Don’t forget ________ the door before you leave the office. A: to lock B: locking C: locked D: to locking
- Don’t forget to lock the door! ______ to lock the door!
- Don't forget ______the door when you leave the classroom. A: to close B: closing C: close