Problem: Continue the following story.

Samantha decided to stop being best friends with Sarah after 
OPTIONS:
- Samantha realized they were betraying them.
- Sarah realized they were betraying them.
Here's how I want to continue it: Samantha realized they were betraying them.

Problem: Continue the following story.

Kevin is being taught about fire safety by Matthew because 
OPTIONS:
- Kevin is a firefighter at the school.
- Matthew is a firefighter at the school.
Here's how I want to continue it: Matthew is a firefighter at the school.

Problem: Continue the following story.

It took longer to clean the fish tank than the dog cage because the 
OPTIONS:
- tank was cleaner.
- cage was cleaner.
Here's how I want to continue it:
cage was cleaner.