Problem: How does the sentence end?

The man had been friends with Matthew for a longer time than Neil because
Answer: Matthew went to high school with him.

Problem: How does the sentence end?

Christine was cooler than Rachel was because
Answer: Rachel was sitting closer to the fire outside.

Problem: How does the sentence end?

Justin called on Leslie's brand new phone, but there was no answer.
Answer: Justin was frightened.

Problem: How does the sentence end?

Jeffrey knew that he could leap over the creek unlike Neil, because
Answer:
Neil was nervous.