a letter for help
dear uncle,
   how are you?
   next week an english speaking contest will be held in the city. a classmate of mine and i will take part in it on behalf of my school. i am excited but also mervous, because it is a good chance to improve my english. but i have no experience. although i have been preparing for the contest, i am still not confident. as an expert in english, what would you advise me to prepare for the contest?
   i plan to pay a visit to you this saturday morning. i wonder whether you will be free then. if not,   could you tell me the time that is convenient for you? i am eager to get your instruction. i will appreciate any of your help.
                                                                                                             your niece,
                                                                                                              yang mei
一封求助信
亲爱的叔叔：
您好!
   下周市里举办英语演讲比赛，我和一位同学将代表学校参加比赛。我感到既兴奋又紧张，因为这是一个提高英语的好机会。但我没有经验。我一直在为比赛做准备，可仍然没有把握。作为一个英语专家，您建议我为比赛准备些什么呢?
   我打算这周六上午去您家，我想知道到时您是否有空。如果没空，能告诉我您什么时候方便吗?我渴望得到您的指导，我会非常感激您的帮助。
                                                                                                          您的侄女  杨梅