Problem: How does the sentence end?

Betty had an easier time training the dog than Samantha because 
Answer: Samantha used negative reinforcement techniques.

Problem: How does the sentence end?

Steven wanted a cupcake for their birthday so they talked Logan into making some because 
Answer: Steven forgot how.

Problem: How does the sentence end?

Carrie often heard person Mary swearing in front of children so 
Answer: Carrie asked her to stop.

Problem: How does the sentence end?

Carrie is being paid to build a round pen for Betty's pigs, so 
Answer:
Betty is the farmer.