四、读一读下面的规则，按照遵循的地点进行分类，将其序号填在对应的横线上。
A. You mustn't write on the desk.
B. You mustn't go to bed late.
C. You mustn't run in the classroom.
D. You must help your parents do some housework.
E. You should clean the blackboard.
F. You must clean your bedroom.

School rules: ACE
Family rules: BDF