假设Linda是你的好朋友，你们两年没有见面了。上个星期她从国外留学回来，你们很高兴见到彼此。请根据提示，简要介绍Linda的变化。

　　提示：1。外貌：以前个子矮，短发;现在个子高多了，长发。

　　2。爱好：以前喜欢打乒乓球、看电视和聊天;现在喜欢弹钢琴、看书和散步。

　　3。性格：以前外向;现在有些内向。

　　要求：1。不要逐字翻译，适当发挥;

　　2。层次清晰，语言流畅;

　　3.80词左右。

　　Linda is my best friend。 She has changed o lot in the past two years。

　　She used to be short and have short hair。 However， now she is much taller than before。 She has long hair。 She used to like playing ping-pong， watching TV and chatting with friends。 But she likes playing the piano， reading books and taking a walk now。 She used to be outgoing。 Now she is a little quite。

　　I think people sure change as time goes by。 Even though she has changed a lot， we will be the best friends all the time。