Problem: How does the sentence end?

Rachel offered to teach Megan to play the piano because 
Answer: Rachel would be a good teacher.

Problem: How does the sentence end?

Sarah was sick today with the flu while Rebecca was not, so 
Answer: Sarah did not go to school that day.

Problem: How does the sentence end?

Kyle was known as a better carpenter than Aaron because 
Answer: Kyle made walls look better.

Problem: How does the sentence end?

The gerbil of Kenneth died from neglect, while Hunter's is nice and healthy. 
Answer:
Hunter is a competent pet owner.