【正确答案】[范文]
Dear Lily,
I'm sorry for getting angry with you yesterday, because I thought that you lost my notebook. But I found it covered by the newspapers on the desk last night. I hope you can forgive me and I'm sure I'll get rid of my bad habit of having a temper without any reason. I wish we are still good friends.
Yours,
Mary

【答案解析】[名师解析] 这封道歉信写出了题目所要求的几点。使用了许多地道的表达，如get angry with, forgive sb., get rid of, have a temper, without any reason等，最后还表达了写信人的希望，有头有尾，是一封很好的道歉信。