Problem: Continue the following story.

Robert had glowing skin, while Nelson had dull, dry skin, because 
Here's how I want to continue it: Robert always used an exfoliating scrub.

Problem: Continue the following story.

Cheerleading suited Christine but not Carrie because 
Here's how I want to continue it: Christine had talent and made the cheer squad.

Problem: Continue the following story.

Betty had an easier time training the dog than Samantha because 
Here's how I want to continue it:
Betty used positive reinforcement techniques.