There are many things done to improve the community by teenagers nowadays. First of all, volunteering work is the best choice. Instead of spending all day on the TV or computer, they can help the old do housework. There is sometimes an orphanage where disabled children live, so they can go there to play with them. It not only helps the community but also helps disabled children have more confidence. Furthermore, teenagers can protect the environment. It is very easy to do such as throwing rubbish in the trash, planting more trees. Another thing teenagers can do to help the community is study. Learning to build the future. Uncle Ho said:' For a 10-year career, one must plant trees, for a one-hundred-year career, one must plant people.'; so that we can understand the advantages of teenagers' studying. In short, there are three main ways that can be done to assist the community to become better.