Obligation / Rule: You must speak English., You must fasten your seatbelt., You must wear a swimming cap. , You must wear a uniform. , You have to be on time. , You have to put the trash in the trash can. , Prohibition: You can't put your feet on the seats., You must not take photos., You can't drive faster than 55 mph., You must not smoke in public areas., You can't play loud music after 10. , You can't take pills with alcohol. , Not required / not neccesary: Teachers don't have to wear a tie., You don't have to travel in this job., You don't have to pay for the museum. , You don't have to work on the weekends. , You don't have to speak English. , You don't have to a uniform. ,

7C b2

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