1. You "can't run during the break. 2. I have to wear a uniform at school.All children wear one. 3. You're in the library. You must be quiet. 4. Mr Green, may i ask you a question? 5. You don't have to go to school on Sunday. 6. May i come in, please?
2. I have to wear a uniform at school.All children wear one.
3. You're in the library. You must be quiet.
4. Mr Green, may i ask you a question?
5. You don't have to go to school on Sunday.
6. May i come in, please?