It is estimated that about 200 million people who use the Internet computer network around the world. The Internet allows people to work at home instead of traveling to work. The Internet allows businesses to communicate with customers and workers in any part of the world for the cost of a local telephone call. E.mail allows users to send documents, pictures and other data from one part of the world to another in at least 5 minutes. People can use the Internet to do shopping. This save a lot of time. It is possible to use the Internet for education – students may connect with their teachers from home to send or receive e.mail or talk their problems through “online” rather than attend a class. 29. The Internet allows people ................................................. A. to stay at home and rest B. not to work C. to travel to work D. to work at home 30. E.mail can be used to send ................................................. A. documents B. information C. data D. all are correct 31. To use the Internet for education is ............................. A. impossible B. possible C. inconvenient D. difficult 32. What is the main idea of the passage? A. The benefits of using the internet. B. The disadventage of using the internet. C. How to use the internet. D. All are