Problem: Continue the following story.

Justin had a queasy stomach but Kyle had an iron stomach. The bad sushi caused 
Here's how I want to continue it: Justin to vomit.

Problem: Continue the following story.

Cynthia loved eating Popsicles unlike Victoria because 
Here's how I want to continue it: Cynthia lived in a hot place and liked cold things.

Problem: Continue the following story.

Mary tried a green chemical while Jennifer tried a blue one. When the blue chemical reacted, they discovered 
Here's how I want to continue it:
Mary had the inactive ingredient.