Chen Zexia is my friend.She has chenged a lot in the past several years. She used to be short and have short hair.Now she is much taller,and she has long hair.She used to play table tennis,watch TV a lot and chat with her friends on the Internet,but now she plays the piano and often goes for a walk.She also likes reading a lot.She used to be outgoing,but now she seems to be a little bit quiet.