Problem: Continue the following story.

Changing negative behaviors was easy for Jessica but not Katrina because 
OPTIONS:
- Jessica had a lot of self discipline.
- Katrina had a lot of self discipline.
Here's how I want to continue it: Jessica had a lot of self discipline.
Problem: Maria had a very rare condition that Erin did not have, so 
OPTIONS:
- Maria always had to see a doctor.
- Erin always had to see a doctor.

My choice: Maria always had to see a doctor.
[Q]: How does the sentence end?

I'm getting a dog as a pet and I'm going to buy it a bowl before a leash because the 
OPTIONS:
- bowl is more useful.
- leash is more useful.

[A]: bowl is more useful.
QUES: Continue writing.

Justin has never had any animals in his house unlike Derrick because 

OPTIONS:
- Justin is allergic to them.
- Derrick is allergic to them.
+++++++++
ANS: Justin is allergic to them.
Problem: How does the sentence end?

The cramps in the stomach were worse than the ones in the legs because the cramps in the 
OPTIONS:
- stomach were shorter.
- legs were shorter.
Answer: legs were shorter.
sentence: Investing in a new pedicure seemed smart for Felicia but not Emily because  OPTIONS:
- Felicia did not have to look professional at work.
- Emily did not have to look professional at work.
complete:
Emily did not have to look professional at work.