She - buy Christmas decorations.
She is buying Christmas decorations.
She - decorate - the Christmas tree.
She is decorating the Christmas tree.
We - clean the house before Christmas.
We are cleaning the house before Christmas.
She - give a Christmas present.
She is giving a Christmas present.
They - put presents under the Christmas tree.
They are putting present under the Christmas tree.
He - make a cake.
He is making a cake.
The reindeer - pull Santa's sleigh.
The reindeer is pulling Santa's sleigh.
They - sing Christmas carols.
They are singing Christmas carols.
We - eat Christmas dinner.
We are eating Christmas dinner.
He - talk to Santa.
He is talking to Santa.