Problem: Continue the following story.

The insurance for the car was more expensive than the insurance for the truck because the 
Here's how I want to continue it: truck was older.

Problem: Continue the following story.

I poured the wine out into a glass, but it didn't all fit because the 
Here's how I want to continue it: wine was a little too much.

Problem: Continue the following story.

The hips of Erin are wider than Katrina, and that's because 
Here's how I want to continue it:
Katrina is a smaller person.