「皆さん、パーティーの途中ですが、これから試験を始めます。」

=Minasan, paatii no tochuu desuga korekara shiken wo hajimemasu!

= “OK, everyone! I know we’re in the middle of a party (and we’re all having fun) but I am going to give you an exam now!”

「エ〜〜ッ！！マジで？」

= Eeeh! Maji de?

= “What? Are you serious?”