MUSTN'T :
We mustnt pour our water into the sea
We mustnt throw our rubbish around
We mustnt buy necessary things in the market
We mustnt leave the tap on
We mustnt drop litter
We mustnt cut down trees
We mustnt waste food
We mustnt use cosmetics
We mustnt use plastic bags
We mustnt harm animals
MUST :
We must use less energy
We must recycle plastic, metal, paper and glass
We must save the planet
We must go to school on foot or bike for short distances
We must classify our garbage
We must tüm off the tap and lights
We must pick up garbages
We must grow more plants
We must stop global warming
We must use public transportation
