4. Make the active sentences passive. Use modal verbs.1. You mustn’t eat those mushrooms.Those...

1. You mustn’t eat those mushrooms.
- Those mushrooms mustn’t be eaten.
- Those mushrooms can’t be eaten.
- Those mushrooms should not be eaten.

2. They needn’t cancel the concert.
- The concert needn’t be canceled.
- The concert doesn’t need to be canceled.
- The concert shouldn’t be canceled.

3. We mustn’t use mobile phones during lessons.
- Mobile phones mustn’t be used during lessons.
- Mobile phones can’t be used during lessons.
- Mobile phones should not be used during lessons.

4. You have to write your name in capital letters.
- Your name has to be written in capital letters.
- Your name must be written in capital letters.
- Your name should be written in capital letters.

5. We must hand in homework on time.
- Homework must be handed on time.
- Homework needs to be handed in on time.
- Homework should be handed in on time.

6. You have to wear school uniforms to school.
- School uniforms have to be worn to school.
- School uniforms must be worn to school.
- School uniforms should be worn to school.