Complete the sentences using the comma where necessary/1.If people think more about ecology … 2. We'll have no shortage of food when… 3… . when…

1.If people think more about ecology, our children and grandchildren can see the glory of nature.2.We'll have no shortage of food, when we eat right.3.We'll get you know when we solve this problem.4.We'll preserve our health by drinking chemically pure water if we use filters.5.We shall survive if we take care about the environment.6.We'll prevent the contamination of water if we don't dump waste into rivers.7.If children take care of animals, they will treat each other more friendly.8. There will be less ecological cataclysms if people don't destroy their habitats.9.When I come to the country, I'll take advantage of inhaling fresh air. 10.They will see many species of mammals when they go to the Zoo.