Problem: Continue the following story.

Jessica enjoyed drinking lots of milk but Betty avoided it, as 
Here's how I want to continue it: Betty was intolerant of lactose.

Problem: Continue the following story.

It was easier for the doctor to diagnose the disease via x-rays versus blood tests due to the 
Here's how I want to continue it: x-rays being more reliable.

Problem: Continue the following story.

She made an apple pie with a fresh crust, but it didn't taste good because the 
Here's how I want to continue it:
apple was rotten.