Peter is a good student at school.But some-times he is not a

Peter is a good student at school.But some-times he is not a good boy at home.He often makes a mess in his room.He does't like to help to set the dinner table.He watches TV the whole evening.He reads in bed and he goes to bed very late.Peter's mother writes some home rules for him:
Home Rules
You should:
1.help to set the dinner table.
2.go to bed early.
3.keep your room clean.
You shouldn't:
1.read in bed.
2.watch TV till late.
3.make a mess in your room.
句子：
You should go to bed early.
You shouldn't make a mess in your room.
词组:
keep your desk clean
make a mess
help to set the dinner table
go home too late