The pre-wedding banquet should be in full swing by now.

（今ごろは婚礼の前祝いで浮かれきってる最中だ）
　映画「ルパン三世 カリオストロの城」英語吹替版より。さて、カリオストロ城への侵入作戦は…？

• "in full swing" で「たけなわで／最高に調子がでて(at the height of activity)」。なんか、踊りたくなっちゃう表現p(^-^)q
  • By nine-thirty the dance was in full swing.
  • By midnight the end-of-course party was in full swing.