Our sentences are:

WE THROW THE GARBAGE IN THE WASTE BIN, NOT ON THE ROAD.

MAKE RECYCLING!

MAKE A NEST FOR SWALLOWS!

PLANT A TREE!

WE MAKE FERTILIZER! COMPOST!

WE CARE FOR WATER!

NO PLASTIC BAG!

NO FIRE IN THE FOREST!

NO TO NOISE!

WE LOVE ANIMALS!

WE DON' T CUT THE TREES!

THE EARTH IS OUR HOME!