Story needs to be completed:
Monica found Kayla quite attractive, so 
OPTIONS:
- Monica received a gift and a card expressing their inner feelings.
- Kayla received a gift and a card expressing their inner feelings.

My choice:
Kayla received a gift and a card expressing their inner feelings.
Problem: Continue the following story.

Erin is known an an entrepreneur while Victoria is only an employee because 
OPTIONS:
- Erin owns a business.
- Victoria owns a business.
Here's how I want to continue it: Erin owns a business.
Problem: The ventilation in the city was more polluted than the air in the forest, because the 
OPTIONS:
- ventilation was dirty.
- air was dirty.

My choice: ventilation was dirty.
[Q]: How does the sentence end?

Brian was a cruel master to Derrick, so 
OPTIONS:
- Brian always ended up feeling abused after their interactions.
- Derrick always ended up feeling abused after their interactions.

[A]: Derrick always ended up feeling abused after their interactions.
QUES: Continue writing.

Being polite came natural to Betty but not Rachel because 

OPTIONS:
- Betty had not read any books on etiquette.
- Rachel had not read any books on etiquette.
+++++++++
ANS: Rachel had not read any books on etiquette.
QUES: Continue writing.

Christine was happy to walk ten miles a day but Lindsey was not because 

OPTIONS:
- Christine was very fit.
- Lindsey was very fit.
+++++++++
ANS:
Christine was very fit.