远离蹩脚英语之Saying I Don’t Know

　　I DON'T KNOW

　　The following expressions are casual andfamiliar. Depending on the tone of voice, they could be considered a bitsarcastic or rude. But often they are said in a moderate tone, and are simplyslangy （and very common） ways of saying Idon't know.

　　（It）beats me

　　You'vegot me

　　Searchme

　　I'mstumped

　　Yourguess is as good as mine

　　Ihaven't （got） a clue

　　I'mclueless

　　Ihave no idea

　　Ihaven't the faintest idea

　　Icouldn't （begin to） tell you

　　Ican't say

　　The expressions that follow are often saidwhen one doesn't know something and isn't interested in finding out, or whenone is disinterested and doesn't care to know. They're often said with adefensive tone of voice.

　　Whoknows?

　　Don'task me

　　Howshould I know?

　　Whyask me?