Question

10 reglas en la biblioteca con should y shouldn't .

Answer 1

You should shut up
Yo should't eat in class
You should read a novel
You should't play the guitar in class

Answer 2

SHOULD
1. You should be silent.
2. You should study.
3. You should use the material properly.
4. You should behave politely.
5. You should leave the books you've took right where they were. 

SHOULDN'T
1. You shouldn't smoke.
2. You shouldn't run all over the place.
3. You shouldn't shout.
4. You shouldn't listen to music without headphones.
5. You shouldn't bother other people. 

Espero que te sirvan, un saludo.