a 、an 、the 、some 、many 、much填空
（）people in the world are wasting()things every day.Yes,they are wasting()water and()crops.Right,but in some places there is not()food for people to eat.So we mush save our environment and help those people.And we must not cut down so()trees and use so()wood.Otherwise the forests will disappear.Yes.We also must not destroy our environment,We must not use so()plastic bags and create so()rubbish.