增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者(从第11处起)不计分。
Dear Mr. Green, thank you for lending me the CD what is really amazing and worth listened to. Unfortunately, I can't show up at your apartment and return back it this afternoon as I promise that day I would. Last weekend I showed my grandparent the CD you lent me. But, I got a sudden call and left their house. I was in so a hurry that I completely forgot take the CD with me. I'm really sorry about that. I promise to bring them back this Sunday and give it to you. I sincerely hope that you won't be angrily with me.
