增加：在缺词处加一个漏字符号(A),并在其下面写出该加的词。
删除：把多余的词用( v)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。
The Internet consisted of millions of pages of data is the big source of information in the world. The World Wide Web is a computer network that allows computer users to have an access to information from millions of websites. It was invented in 1991 by Tim Berners-Lee, he built his first computer while he was at university. He came up to the idea of the World Wide Web in 1989 while worked in Switzerland. Berners-Lee made possible for everyone to use the Internet. He designed the first "web browser", which allowed computer users to access document from other computers. The Internet had created thousands of millionaires. Besides,Berners-Lee is not one of them. He now only works as a lecturer in Boston.
