Modal verbs have to/must

1. I can stay in bed tomorrow morning because I ... work.

2. Whatever you do, you ... touch that switch. It's very dangerous.

3. You ... forget what I told you. It's very important.

4. We ... leave yet. We/ve got plenty of time.

5. Ann is feeling ill. She ... leave the party early.

7. The window are very dirty. I ... clean them.

9. We ... take an umbrella. It's not going to rain.