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- ~横线，并在该词下面写出修改后的词。
注意：⒈每处错误及其修改均仅限一词；
⒉只允许修改10处，多者（从第11处起）不计分。
Dear Mary,
My name is Li Hua, a 18-year-old student from Eton middle school. To help the old people in the nursing home, my classmates and me will go there this Sunday, As the monitor of Class Two, I wanted to invite you to go with us.
Here are some information about this activity, To begin with, we will leave for our school by bus at 8 a.m, but return at 5 p.m. Besides, there will be a lot of activity such as making dumplings and giving performances, that will be not only interesting but also meaningful.
Hopeful, you will like the plan and join us. I have the confidence that we will have a great time there. Looking forward your reply and your decision.
Yours,
Li Hua
