1)people have always student living their natural environment.2) how does our environment influence our children? . 3) i dont think people living isolation could be happy. 4) ecologists study what happens different species of birds and animals. 5) what size shoes do you wear? . 6) what are the relations the two families? 7) young people often send e-mails each other. 8) mr brown is 92 years old but he is good health .9) whats the number children in your family ? .10) nowadays people often travel air

1) People have always studied living things in their natural environment.
2) How does our environment influence on our children?
3) I don't think people living in isolation could be happy.
4) Ecologists study what happens to different species of birds and animals.
5) What size shoes do you wear?
6) What are the relations between the two families?
7) Young people often send e-mails to each other.
8) Mr Brown is 92 years old but he is in good health.
9) What's the number of children in your family?
10) Nowadays people often travel by air.