Problem: Continue the following story.

The dogs had more fun running in the field than in the cage because the 
Here's how I want to continue it: cage was narrower.

Problem: Continue the following story.

They both wanted to get a tattoo but Benjamin had an easier time asking their parents than Derrick because 
Here's how I want to continue it: Benjamin parents were easy going.

Problem: Continue the following story.

Derrick was more likely to have an apple at lunch than Neil because 
Here's how I want to continue it:
Derrick liked to eat fruit.