What are the correct modal verbs to fill in the blanks in the given sentences?

1. Can you swim? 2. Do you have to stay in bed when you’re ill? 3. Are you allowed to read Oliver Twist at school? 4. May I use your telephone? 5. I must excuse myself. 6. You must not park your car here. 7. Ted should be more careful in the future. 8. We should not buy bread.