Problem: How does the sentence end?

The puppy always followed Ryan but avoided Donald, since 
Answer: Donald did not like to play or throw the ball.

Problem: How does the sentence end?

Fertilizing the fruit trees during the spring suited Kenneth but not Logan because 
Answer: Kenneth likes growing things.

Problem: How does the sentence end?

Mary memorized the test answers in advance, while Jennifer did not, so 
Answer: Jennifer got a lower score on the exam.

Problem: How does the sentence end?

Joel wanted to get chickens for their backyard but Samuel did not because 
Answer:
Joel thought it would be fun taking care of them.