Problem: Continue the following story.

Katrina's challenges at school included math and science, while Kayla's were reading and literature.  
Here's how I want to continue it: Katrina was definitely better at STEM subjects.

Problem: Continue the following story.

Angela loved playing baseball on a team with all their friends but Christine did not because 
Here's how I want to continue it: Christine did not enjoy sports.

Problem: Continue the following story.

Katrina made her halloween costume for the party, but Rachel bought hers.  
Here's how I want to continue it:
Katrina is creative.