1. You don't need to water these plants.
2. You mustn't park here.
3. We musn't drive on the left hand in this country.
4. I should get home by curfew.
5. Parents should take time to understand their children.
6. Visitors mustn't open the lion's cage in the zoo.
7. You should go and see that film.
8. You should tell the truth with your parents.
9. She mustn't hang out with her friends after 9pm.
10. It is my parents' wish that I should speak in a polite voice to other people.
