Problem: How does the sentence end?

Jumping in the water was never a problem for Jeffrey but it was for Derrick, because
Answer: Derrick took boxing lessons as a child.

Problem: How does the sentence end?

Dennis liked pop music, but Jason preferred classical music.
Answer: Jason liked music with string instruments.

Problem: How does the sentence end?

Rats infested Aaron's attic but not Hunter's because
Answer: Hunter lived in a very new house.

Problem: How does the sentence end?

Craig asked Brett for a good recipe for okra, since
Answer:
Brett often cooked with it.