增加：在缺词处加一个漏子符号（∧）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 Tom,
I'm delight to introduce you something about Chinese cultural heritage.
Hard-working and intelligently, Chinese people have made great contributions to the world civilization. Nowadays, many Chinese cultural heritage sites were preserved very well. If you have a chance to travel to China, I recommend yourself to visit Beijing and Xi'an, where many cultural sites are worth visited. Apart from the cultural heritage sites, the natural scenery in Guilin is such beautiful that you will be deeply impressed. Besides, some simple folk custom in the villages in Yunnan province are likely to remind you the good old days, during which living a harmonious life with the nature in the villages, as you know, are of great benefit.
Yours,
Li Hua
