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 John,
Next month I would go to Beijing to take part in the students English speech contest. I find it easily to remember English words as well as the grammar rules. However, what worries me a lot of is that I am really having trouble in use language. Sometime I cannot express myself with proper English. Would you please do me a favor? I would appreciate that if you can give me some advices on how to solve these problems. By way, I will call you when the competition is over. I am looking forward to your reply.
Yours,
Li Hua
