В каком сочинении сформулирован закон Архимеда?

I have to wear my school uniform.I must do my homework every day.I must go to school, if I am not ill.I have to get up early and go to school.I must respect my teachers.I mustn`t violate school rules.I have to eat lunch at school.  

I can not play football in my room.
i must  do my homework in my room.
i can play games in my room.
i must not eat in my room.
i cant run in my room.
i must clean my room.
i must not watch TV in my room.