假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
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 Tom,
I'm happy to get from your letter and knew you're coming to China.
Among the two trips to the Yangtze River and Mount Tai, both are high recommended (推荐). Personally, I prefer the tour along the Yangtze, longest river and one of the mother river of Chinese civilization. You can learn a tot about the history of China and Chinese people. Moreover, the scenery along the river are amazing, with many well-know sightseeing spots. That's because I think the trip along the Yangtze will be a better choice.
I hope your suggestion will be of some help and you'll have a good time in China.
Yours,
Li Hua
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