"有没有搞错啊?"这么一句普通的口语用英语怎么说?

有不同的说法, 国外经常用的是

are you kidding me?
are you sure or not?
no joking/kidding, dude/bro/man

不同的场景下表达意思是不一样的～

Come on!Don't kidding me!!

Are you joking man?

Are you kidding me?
Are you shitting me?
Are you serious?
Get Real?

以上答案sun_of_beach和hxz6276是很好的回答。

What? How come?