Read and complete the text with the appropriate words from the list. Use each word only once. There are three words you don't need.

Earth day is a young holiday. People ... it all over the world and in our country Russia too. We all know that our planet is beautiful and we must take ... of it. It is the day ... everyone tries to ... life on Earth greener. In all Russian towns and cities people ... trees, collect glass, plastic, and paper on clean-up days in spring. In Russian schools, teachers tell children how we can save our planet.