A、Your ideas. B、Your age. C、Your identity. D、Your look. A

Cyberspace is changing the world. It makes our lives more convenient. Through the Internet, people may find information, play games, and share hobbies: others buy and sell products: still others search for friendship, find someone to talk with. Is it different from the usual ways of making friends? Of course, unlike the real world, one’s knowledge about a person is limited to worlds on a computer screen. Identity and appearance mean very little in cyberspace. However, a person’s thoughts or at least the thought they type are really of importance, and so even the shyest person can become a chat room star. Usually this faceless communication doesn’ t cause problems. Identity doesn’t really matter when you enter a chat room, discussing politics or hobbies. In fact, this value on the ideas themselves makes the Internet a great place for exciting conversation. Where else can so many people come together to chat about their interests?
15. What is very important when you chat with someone online?
16. What can’t be done through the Internet?
17. What’s the writer’s attitude towards making friends online?