A : Did you hear about Jane?
     - Jane 얘기 들었어?

B : What about her? 
    -  얘기 뭐?

A : She is getting married next week.
     - 걔 다음주 결혼한 데..

B : What?! I didn't know that!
     - 뭐? 난 그거 몰랐는데!