It's a very popular App at the moment. It's an online version (版本) of Pictionary, where you invite friends on Facebook to compete. Each round you are given 3 words to choose from of which you must draw. Your competitor must guess correctly so that both of you can receive coins to buy additional colour tools. Fun for any age.

Instagram

　　This App is about sharing photos. Similar to Twitter, you follow people and they follow you. New photos show up in a "news feed" where you can comment on photos. You can also view popular photos and have the choice of making your photos public (everyone can see them) and anyone can "follow" you. It's a good idea to consider privacy settings as once photos are uploaded (上传) anyone can have access to them.

Viddy

　　Similar to Instagram, except it's all about videos. Film a video and immediately upload it. Again people can follow you and you can follow people. You can see "what's hot" - the most popular and newest videos. In addition you can share videos you have.

Oldify

　　This is fun and easy to use. Upload a photo of yourself or a friend by either taking a photo or using one from your photo library, line up the eyes and lips, press a button and the photo of you or the person you uploaded will appear as a person 50 years older! By touching the screen the face will react.

21．Draw Something is an App that ________.

　A children like most B is for users of any age

　C users can use to share pictures D is used to buy paintings online

22．When using Instagram, users should ________.

　A make their photos public B comment on their friends' photos

　C pay special attention to their privacy D follow people to view popular photos

23．What do we know about Oldify?

　A It helps users to beautify their photos.

　B It allows users to share their opinions.

　C It is a frightening but fun online game.

　D It enables users to see their aged appearances.

　　B

　　Londoners are great readers. They buy large numbers of newspapers, magazines and books - especially paperbacks (平装书), which are still cheap in spite of ever­increasing rises in the costs of printing. They still continue to buy "proper" books, too, printed on good paper.

There are many streets in London containing shops which specialize in book­selling. Perhaps the best known of these is Charing Cross Road in the very heart of London. Here bookshops of all