I have many hobbies,such as sports,singing,playing the violin and keeping a diary.In school,I often hear the P.E.teacher say,sports do good to one's health,and will make one live longer.So,I like sports very much.I go running at five o'clock in the morning,and after classes in the afternoon.I play pingpong with my friends.These sports have kept me healthy.At home,I like to sing and play the violin.I hope I will be a singer and a violinist when I grow up.In order to attain these goals,I go to the teacher's home for a lesson every Saturday,and practise singing and playing the violin every day.Busy as I am,I am quite happy.Of all my hobbies I like reading books best.In my bedroom there are nearly six hundred books.There are story books,textbooks,magazines,and others.When I grow up,I will serve the people with the knowledge I have learned from them.