Story needs to be completed:
Monica went to the store, owned by Samantha, to buy a gallon of milk, so

My choice:
Samantha sold the milk.

Story needs to be completed:
Mary tried to maintain their composure in front of Kayla, but

My choice:
Kayla was too indifferent to notice.

Story needs to be completed:
After running the dishwasher, Mary removed the plates but left the cups in there because the

My choice:
cups were still dirty.

Story needs to be completed:
Jessica was able to negotiate the map but Rachel was not as

My choice:
Rachel had a terrible sense of direction.