We use slang because it helps you to write notes in school, instead of writing the whole word. That is what my teacher said at school. Hope I answered your question well =]
100%. Everyone in the world uses slang.
People have used slang since the dawn of time. There was slang every since cave men but it wasn't slang it was the pronounciation for thier words.
Slang changes with vocabulary and the times, much of it coming from the military of all countries
You avoid it by learning the proper words and phrases used in the language. The more educated you become, the less likely you will be to use slang in a formal setting.
Not always. Colloquialisms are old, common sayings, but slang is often new words and sayings.
You use slang in casual conversation, especially with friends.
Everybody uses slang.
Everyone uses slang. Name any famous person -- yes, they use slang, too.
Yes, in an informal letter it is OK to use slang.
Writers use slang because real people use it.
People use slang so that other people won't know what they're talking about.
All of them. Everyone uses slang at some time.
when we know each other very well with the same interest informally, it is appropriate to use slang.
Almost all of the language we use today in America is slang.
100%. Everyone in the world uses slang.
Books and audiocassettes teaching English, French and Spanish slang.
It depends on the type of speech. In an informal speech, slang is fine; in a formal speech, you should avoid slang.