从方框中选择单词，带入短文空格内，使短文意思正确、通顺，再将其适当形式填入短文后的横线上。
（每词限用一次）。

Addressplacespeak really nobodypracticefriendly thembut usually

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. These places are2______ called 'chatroom'. Sometimes you need to register (注册)
to enter a chatroom. This means that you need to provide a username (用户名) and possibly your e-mail
3______. Your username does not have to be your4______ name. It can be any name you want. When you
have your username, other people in the chatroom will can you by that name and5______ else can use it.
Chatting is a good way to6______ your informal English, Messages in a chatroom are usually short
sentences. Sometimes7______ are not even sentences, 8______ just a few words that are not really
grammatically (语法) correct. It's a typical way in which we9______ in a quick 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.