1. Do you mind if I ieave the door open for a while?
can Can I leave the door open for a while?
2. You're obliget to take notes during the lecture.
have
3. I'm sorry,but you aren't allowed to enter this room/
must
4. Jack managed to unlock the door.
able
5. It wasn't necessary for Ann to cook dinner, but she did.
need
6. Let's play a game of chess.
could
7. I'm certain sarah is bored with her work.
must
8. I strongly advise you to take up sport.
must
9. I'm certain Liz isn't interested in your ideas.
can
10. You may take the car tonight if you want.
can