求英语作文假定你是李华 你昨天收到好友汤姆的来信 他邀请你参加他的生日聚会 但是你不能去 因为你妈妈在骑自行车上班途中摔

Dear Tom,
First of all,thank you for inviting me to your birthday party.I would like to come.but I can't attend,because my mom was in the hospital,because she was fell down off the bike on her work way.And my dad has gone to Beijing on business,after three days to return.So I have to look after my mother.What a pity!But I will send you a birthday present to wish you a happy birthday.
Yours
Li hua
亲爱的汤姆:
首先,非常感谢你邀请我参加你的生日聚会.我想来.但我不能去,因为我的妈妈在医院里住了,因为她是放下了自行车放在工作上.和我爸爸已经去北京出差,三天后回来.所以我必须照顾我母亲.真遗憾!但我要送你一份生日礼物祝你生日快乐吧!
你的
李华