Problem: How does the sentence end?

Craig rushed to build their aquarium so it fell apart but Matthew's did not since 
OPTIONS:
- Craig is thorough.
- Matthew is thorough.
Answer: Matthew is thorough.
sentence: Lindsey needed to learn how to file from Amy since  OPTIONS:
- Lindsey 's office was well organized.
- Amy 's office was well organized.
complete: Amy 's office was well organized.
She wanted to eat some icecream but ate candy instead, because her teeth can't stand cold food like the 
OPTIONS:
- icecream .
- candy .
icecream .
Input: Continue writing.

Robert's hair has a bow in it, but Aaron feels too old to wear one, so 
OPTIONS:
- Robert is likely the parent.
- Aaron is likely the parent.

Continued: Aaron is likely the parent.
Story needs to be completed:
The man grabbed the rake instead of the broom to knock the ball off of the roof because the 
OPTIONS:
- rake was shorter.
- broom was shorter.

My choice:
broom was shorter.
Problem: How does the sentence end?

Matthew was a great swimmer while Benjamin was not since 
OPTIONS:
- Matthew had owned a pool all of their life.
- Benjamin had owned a pool all of their life.
Answer:
Matthew had owned a pool all of their life.