Complex sentence: Dressed as Father Christmas, Scrooge then delivers a giant turkey, presents and toys to the Cratchits, and after making his identity known, gives Bob a raise and promises that they will work to find the best doctors to make Tiny Tim better.
Split into simpler sentences: Dressed as Father Christmas, Scrooge then delivers a giant turkey, presents, and toys to the Cratchits. After making his identity known, he gives Bob a raise and promises that they will work to find the best doctors to make Tiny Tim better.