We can keep our school clean by throwing our waste in garbages, same for the chewing-gum. We can keep it clean if we don’t throw away water on the toilets floors.
We must also flush the toilets.
To keep it clean we don’t have to write on tables or on walls.
We must not throw away food in the cafeteria.
In art class we shouldn’t play with the painting or anything that can make the class dirty.
