by	from	destroy	wash	with
to	a	in

Trees are very useful (a) _____ man. They prevent the rich top soil (b) _____ being (c) _____ away (d) _____ rain water and floods. We can see trees being planted and damaged. Trees provide life to (e) _____ place (f) _____ their colorful flowers, beautiful leaves and fruits. They provide shelter (g) _____ birds and animals. They take in carbon dioxide and give out oxygen. Man needs oxygen (h) _____ breathe. Actually without trees our life (i) _____ the world is impossible. So, we should plant more trees and must refrain from (j) _____ trees and forest.