帮我看看我写的这篇作文写的对吗?
DearSam,
IhadgonetoBeiJingwhenyoucamemyhometown.SoIwillintrdoucemyfriendtoyou.HeisLiuKai.Heissixteenyearsoldasthesametoyou.Heisveryfriendlyandhonest.Andtoyouveryhelpful.Hishobbiesaresports,musicandtraveling,andsoon.HespokeChinese.HeknewaboutmanyChieseculture,andhelikesChinesecultureverymuch.ThisismyfriendLiuKai.IwishyouandLiuKaiaregetalongveryfriendly.
Yours,
LiLin