Problem: How does the sentence end?

Nelson has recently separated from his best friend Brett and is trying to forget him, because 
Answer: Brett hurt him.

Problem: How does the sentence end?

Steven filed at a much higher bracket than Kevin on his income tax because 
Answer: Steven earned a lot of money.

Problem: How does the sentence end?

Although the job interview went poorly for Ryan and well for Michael, the company declined 
Answer: Michael for the job in spite of this.

Problem: How does the sentence end?

Neil brought peanuts to the party but Justin brought balloons, 
Answer:
Neil was unaware of food allergies.