增加：在缺词处加一个漏词符号(∧)，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限一词；
2．只允许修改10处， 多者（从第11处起）不计分。
I'm glad to have received your letter say that you are interested in China. Now I am writing to sincere invite you to visit China, where won't let you down. As you know, China, with a long history and great culture, have a sea of famous cities and different types of places of interesting for you to explore. Among them he can't miss the Great Wall! Beside, you can also enjoy various delicious food and convenience transport like high-speed trains and shared bikes. They are sure give you a brand new experience!
Wish you all are the best!
