In the rules of the library, use must and must not in English, at least 7 items

We must obey the library rules.

We must obey the librarian there.

2.We must observe the library rules.

We must observe the library rules.

3.You are here in the library. You must obey library rules. You mustn't smoke. You mustn't little the floor.

When you get to the library, you must Follow the library rules, no smoking, no throwing things on the floor.

4.You must comply with the library rules.

You must comply with the library rules.

5.You mustn't talking loudly in the library.

You must not talk loudly in the library

6.We must keep quiet in the library, so you mustn't talk.

We must keep quiet in the library, so you must not talk

7. You must? keep quiet. You must keep quiet.

8.you must return the book on time.

You must return the borrowed books to the library on time.

9.You must put the book back on the right shelf when you finish it.

When you finish reading, you must put the book back on the right shelf.

10You mustn't draw or write anything on the page.

You mustn't draw or write anything on the page.

You mustn't draw or write anything on the page.