Complete. Use must or mustn't.

### Exercise 2. Rules for Blackdown House Servants 1. You mustn't talk at work. 2. You must work twelve hours a day. 3. You mustn't drop litter on the floor. 4. You must start work at six o'clock. 5. You mustn't eat the owner's food. 6. You mustn't shout. 7. You must clean your room every day. ### Exercise 4. Write the school rules 1. You mustn't run in the classroom. 2. You must speak English in class. 3. You mustn't write on your desks. 4. You must do your homework. 5. You mustn't eat in a class. 6. You must wear school clothes. ### Exercise 3. Complete with must or mustn't 1. must 2. must 3. mustn't 4. must 5. must 6. mustn't ### Exercise 5. Rewrite the sentences 1. You must read the letter. 2. Don't eat the food. 3. You must listen to the teacher. 4. You mustn't shout. 5. Don't be late. 6. You must read this book. 7. You mustn't run.