1.Be quiet
2.not to talk too loudly.
3.not to take the books you borrow out of the libary.
4.not to run
5.keep the desks and floor clean
6.not to eat
1.Be quiet
2.not to talk too loudly.
3.not to take the books you borrow out of the libary.
4.not to run
5.keep the desks and floor clean
6.not to eat