1 Circle the words to complete the sentences.
1. Students must/ don't have to be on time to class.
2. Don't run / Run in the house. It's dangerous.
3. You should/shouldn't join my guitar lessons. They're really fun!
4. May / Can you help me choose a new computer, please?
5. I have to / don't have to wash the dishes at home. My dad does them.
6.
You should/shouldn't try to fix the car. You're not a mechanic.
7. We have to / must not take notes in class. Our teacher checks them.
8. Turn off / Don't turn off your phone-no phones in class!