假如你是李平。你们学校这一周是艺术周，要选出一名最佳歌手。请你写一封推荐信给校长
推荐你的朋友。
     内容包括他（她）的外貌，性格，能力，特长，品质等。60词左右。
Dear Sir, 
                                                                                                                                                  
                                                                                                                                                  
                                                                                                                                                  
                                                                                                                         Yours sincerely,
                                                                                                                          Li Ping