Problem: How does the sentence end?

The feet of Jennifer stayed wetter than the feet of Felicia because 
Answer: Felicia had worn their rubber boots.

Problem: How does the sentence end?

Jeffrey asked Nick to help them make a workout routine. 
Answer: Jeffrey was thankful for getting the assistance.

Problem: How does the sentence end?

Nick was a poorer musician than Brian, so 
Answer: Brian didn't have to practice their music as regularly.

Problem: How does the sentence end?

Nick made a worse grade in the class than Donald because 
Answer:
Nick was always chatting during the lesson.