Punctuate a passage for me?

We queued excitedly from te gate to the haedmistress office in anticipation of the arrival of the bishop curiously this was a friday and in the history of six years stay in that school the bishop had never visited on a weekday worse so on a friday but these were orders from the sister herself so we lined-up and sung why is his lordship coming to school today we quiped but no one seemed to have an answer couldnt it have been better if we waited for him in the assembly hall one girl complained already tired after standing in the cold for two hours suprisingly no teacher joined us but we assumed they would eventually come out wwhen they heard our cheers for the bishop then she came out sisters face was full of mischief as she smiled at us and raised the pictuer of o fish above her haed we had been fooled it wa saprils fools day sister had duped up we learnt that one of us had run to sisters gouse early in the morning and had lied to her that the laboratory was on fire we had paid for it and we deserved it.