Problem: Continue the following story.

Mary was prone to depression while Monica was not, because 
Here's how I want to continue it: Mary was a naturally optimistic person.

Problem: Continue the following story.

I chose to wear the ribbon instead of the clip in my hair because the 
Here's how I want to continue it: clip is uglier.

Problem: Continue the following story.

Jennifer asked Mary for help understanding the diagnosis given by the doctor because 
Here's how I want to continue it:
Jennifer had little medical training.