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

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Dear John, Thanks for your invitation very much.But with great regrettable,i have to tell you that i can't come. There will be a so important exam the day after tomorrow that i must pay attention to it.I have put a lot of efforts on it and this exam is very important to me.Whether i will succeed depends on it.I don't want to give it up easily.I hope that you can understand me. Though i won't come to your party,i hope you'll have a good time.And i will touch you next time. Yours, Li Hua