Problem: How does the sentence end?

Rebecca decided to join the Armed Forces, but Rachel had to stay behind to attend school, because 
Answer: Rachel was a minor.

Problem: How does the sentence end?

The child learned much better from Leslie than they did from Benjamin, because 
Answer: Leslie was very skilled with teaching children new things.

Problem: How does the sentence end?

Jeffrey had black circles under their eyes after spending the night at Christopher's house, and 
Answer: Jeffrey decided not to sleep away from home again.

Problem: How does the sentence end?

Brian is more lively at work than Kenneth although 
Answer:
Kenneth gets more sleep at night.