1.people/be educated about forest fires , fires/not destroy forest!

1.people/be educated about forest fires , fires/not destroy forest! 2.streets/be cleaner,cities/be nicer places to live 3.people plant more trees,they havemore oxygen там нужно (я так поняла) поставить перед предложением if, и окончание ed (например: If people recycled more paper,logging companies would cut fewer trees. (people recycle more paper,logging companies would cut fewer trees.) Помогите)