山东临沂市临沭县2012-2013学年高二下学期模拟试卷英语作文

Dear john, I'm thankful to your invention.But I'm afraid that I can't have a dinner with you.I'm very sorry about this.Because I'm comparing an exam the day after tomorrow.It's a very important exam.I hope you can understand me.We can have an agreement for another dinner.OK?I do sorry to you.Finally,I hope you can have a good time. Yours, Lihua