Hello, help me please☺​

Réponse :

Explications :

1- You mustn't smoke.

2-You must stop.

3-You mustn't litter (ou) You must keep this place clean.

4-You mustn't use your phones.

5-You must only walk on the sidewalk.

6-You mustn't allow your pets in here.

7- You must keep it down.