Problem: How does the sentence end?

Katrina asked Erin how to do her hair like Arwen, because 
OPTIONS:
- Katrina had never been able to do that before.
- Erin had never been able to do that before.
Answer: Katrina had never been able to do that before.
sentence: Bill goes hunting with both a bow and a gun, but uses the  OPTIONS:
- gun more because it requires less patience.
- bow more because it requires less patience.
complete: gun more because it requires less patience.
When Craig tossed the fish into the bowl, Hunter shrieked, so uncle gave 
OPTIONS:
- Craig an angry look.
- Hunter an angry look.
Craig an angry look.
Input: Continue writing.

Dennis ate as much fish as he could compared to Derrick, because 
OPTIONS:
- Dennis disliked it a lot.
- Derrick disliked it a lot.

Continued: Derrick disliked it a lot.
Story needs to be completed:
Katrina borrowed a ladder from Laura to put up Christmas lights; when the ladder broke, 
OPTIONS:
- Katrina decided to buy their own.
- Laura decided to buy their own.

My choice:
Katrina decided to buy their own.
Problem: How does the sentence end?

The kids tried using a lawnmower to clean the park but the 
OPTIONS:
- park was too large.
- lawnmower was too large.
Answer:
park was too large.