Problem: How does the sentence end?

The boys played catch in the house but were told to move to the yard, as the 
OPTIONS:
- house is an inappropriate place for their game.
- yard is an inappropriate place for their game.
Answer: house is an inappropriate place for their game.
sentence: Matt took the bus home instead of his car because he had been drinking alcohol. It was legal to take the  OPTIONS:
- car .
- bus .
complete: bus .
For her friend's birthday, Janel was deciding between knitting her a sweater or buying her a nice watch. She chose the 
OPTIONS:
- sweater because it was less expensive.
- watch because it was less expensive.
sweater because it was less expensive.
Input: Continue writing.

After the earthquake, Robert remained more calm than Jason because 
OPTIONS:
- Robert lived far from the epicenter.
- Jason lived far from the epicenter.

Continued: Robert lived far from the epicenter.
Story needs to be completed:
Nick kicked up dust as they ran past Robert, making 
OPTIONS:
- Nick the runner up of the race.
- Robert the runner up of the race.

My choice:
Robert the runner up of the race.
Problem: How does the sentence end?

The air was stuffy in the kitchen but refreshing in the den, as the 
OPTIONS:
- kitchen was so well ventilated.
- den was so well ventilated.
Answer:
den was so well ventilated.