Story needs to be completed:
In a quid pro quo, Elena did both their taxes while Natalie did both their haircuts.

My choice:
Elena is an accountant.

Story needs to be completed:
John hated his work this year compared to his job last year, because the

My choice:
job was better.

Story needs to be completed:
Erin had roofing installed for Christine's apartment yesterday because

My choice:
Christine was the tenant of the apartment.

Story needs to be completed:
Christine made cookies for Elena, although

My choice:
Elena had no desire to eat a special snack.