求一篇英语作文 80字以上 题目如下

2. write a letter to one of your friends who invited you to his/her birthday party. You should write at least 80 words, and base your letter on the Chinese outline below:
1. 告诉对方你不能接受他/她的邀请；
2. 对对方的邀请表示感谢；
3. 说明无法接受邀请的原因。

Dear .:
Thanks for your invition.I'd love to go to your birthday party.But unluckily ,I have to study for my math test on Saturday night.I want to get good grades in this math test because it makes up 30% in our final exam.For me ,it is a very important lesson.
So ,thank you again .And maybe we could find another time to have a party again.Wish you have a good time in your birthday party .And happy birthday!
应该是不错的一篇文章吧.楼主看在我认真对待的分上就给点分吧..这篇文章你呢.对付一般考试是绝对的绰绰有余了..

dear chengfang: how is everything getting along with you? it is almost one year since we graduated from university. i miss you very much. what have you been doing all these days? i have been a middle school teacher in my hometown since graduation. teaching always keeps me busy, but i like my students and i love teaching, you know. so everything is fine here. there will be a former classmates' getting together during this may day holiday at my school. you are my best friend. i never forget those happy days we spent together. i hope you can come to my school when the time is due and you are free. i am looking forward to you reply. yours truly, li ming。