Problem: How does the sentence end?

She prefers riding a bike over a skateboard, because the
Answer: skateboard is more exhausting for her.

Problem: How does the sentence end?

I decided to paint with the roller instead of a brush because the
Answer: brush would do the job slower.

Problem: How does the sentence end?

Carol handed the date to Robert, who refused it. He wanted a prune instead. The
Answer: prune was perfect for his taste buds.

Problem: How does the sentence end?

The carrots caused constipation in the baby, but the tomatoes did not, as the
Answer:
carrots were hard on his stomach.