A Teens love to socialize, and these websites give them a chance to do that while playing games, exploring virtual worlds and taking quizzes. Of course, teens also need to be safe online and report any cyber bullies(欺凌). Instagram Instagram allows teens to upload photos of their daily life and share them width friends. They say that a picture is worth a thousand words, and that must be true because Instagram has around 300 million users who are active each month. The platform is all about photos with short captions. When it comes to Instagram’s users, 53 percent of them are aged 18-29, but a big percentage of those may be even younger and simply list their age as 18 in order to use the platform. Habbo Hotel Habbo Hotel is a place for teens to chat. Each teen receives a personal room to decorate with virtual objects. They can also dress their avatar(网络头像)in virtual clothes or create games to play with friends. The room might have music, be set up like a classroom, or have other features so different avatars can visit one another. Each room teens can interact in has an adult in charge to make sure it stays safe. Fanalala Fanlala is a social network that gives teens who love celebrities, music and TV shows a place to interact. Through it, a user can get the latest news and chat on their favorite shows, as well as take quizzes and polls to test their knowledge. Teens can set up their own profile on Fanlala and interact with other users. Teen Chat Teen Chat is a place for teens to interact with one another through forums(论坛)according to their interests. For example, there are chat rooms for those who love anime(动漫)and for those who’ve just started college. There are also chat rooms for things like music, games, and sports. The platform offers a “Friend Finder” tool that will help teens search for people who live locally to them. 21. What makes Instagram different from other sites listed in the text? A. It’s a great place for people to share photos. B. The majority of its users are in their 2Os. C. It has the largest number of users. D. Only those above 18 normally use it. 22. Which site allows its users to design their own virtual room? A. Instagram. B. Habbo Hotel. C. Fanlala. D. Teen Chat. 23. What can you acquire from Fanlala? A. Game skills. B. Sports knowledge. C. Anime videos. D. Entertainment news. 24. What does the text mainly talk about? A. Tips on online chatting. B. Sites for socializing. C. Free chat rooms for everyone. D. How to fight cyber bullying.