Story needs to be completed:
Samantha was generally faster at running than Jessica, so it was surprising when 
OPTIONS:
- Samantha lost the race by a large margin.
- Jessica lost the race by a large margin.

My choice:
Samantha lost the race by a large margin.
Problem: Continue the following story.

Kayla gave Rachel a boost up onto the roof, because 
OPTIONS:
- Kayla wanted to be on the roof.
- Rachel wanted to be on the roof.
Here's how I want to continue it: Rachel wanted to be on the roof.
Problem: Jennifer was more comfortable selling vacuums door-to-door than Carrie because 
OPTIONS:
- Jennifer had never worked in sales before.
- Carrie had never worked in sales before.

My choice: Carrie had never worked in sales before.
[Q]: How does the sentence end?

Because Hunter was more health conscious than Kyle, who was focused more on convenience, 
OPTIONS:
- Hunter preferred fast food to smoothies.
- Kyle preferred fast food to smoothies.

[A]: Kyle preferred fast food to smoothies.
QUES: Continue writing.

The hospital in the city is better equipped but not as friendly as the hospital in the small town because the 

OPTIONS:
- city hires people that are well-known.
- town hires people that are well-known.
+++++++++
ANS: town hires people that are well-known.
QUES: Continue writing.

Carrie went to visit their parents for the holidays, but Tanya made other plans, because 

OPTIONS:
- Carrie was estranged from their family.
- Tanya was estranged from their family.
+++++++++
ANS:
Tanya was estranged from their family.