短文填空。从下面方框中选出10个单词，用它们的适当形式填入短文空格内，使短文意思正确、通顺(每词限用一次)。按编号将答案依次填人题后的表格内。(共10小题，每小题1分；计10分)
 
The verb“chat”means to talk(to someone)in a friendly，informal(非正式的)way．Today there are many  1 on the Internet where you can chat．You can chat with people all over the world，in many languages and about many subjects or topics．These places  2 “chatroom”．Sometimes you need to register(注册)to enter a chatroom．You need to provide a username and possibly your e-mail  3 ．Your username does not have to be your  4 name．It can be any name you want．When you have your usemame，other people in the chatroom will call you by that name and 5 else can use it．
Chatting is a good way to  6 your informal English．Messages in a chatroom are usually short sentences．Sometimes  7 are not even sentences， 8 just a few words that are not really grammatically correct．It’s a typical way in which we speak in a  9 conversation with friends．To save time，people often use abbreviations like TTYL(talk to you later)or IDK(I don’t know)．So don’t go to a chatroom to practice“perfect”English．Go to a chatroom to practice informal English and find new  10 ．You can even use a chatroom to help improve your typing skills if you want．