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。作文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

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：在错的词下画一横线，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。

    On the development of the Internet, people use computer to surf the Internet every day. The Internet made it easy for people to leave their own opinions on hot issues, and then some new words are creating. Zhai is a very popular word, which refers to the people who is staying at home all the time. They seldom go out to a real world. People can buy that they want on the Internet and the goods can be delivered to their homes, so more and more people like staying at home. Of course it's good for health. Get rid of the habit of staying at home can bring people a health life.

隋朝一位先生，家住余杭，到洛阳参加考试，如果走运河水路，下列哪段运河他不必经过：

如图所示舞蹈属于哪个国家（　　）