Problem: Continue the following story.

I prefer drinking almost any coffee over tea because the 
Here's how I want to continue it: coffee always keeps me awake.

Problem: Continue the following story.

She wanted to display the ad on the billboard, but the 
Here's how I want to continue it: ad was too big.

Problem: Continue the following story.

Erin asked Lindsey how to potty train the puppy, but 
Here's how I want to continue it:
Lindsey  had never learned how to.