Problem: How does the sentence end?

Craig helped Brian study for the upcoming chemistry test because 
Answer: Craig was feeling very confident about it.

Problem: How does the sentence end?

Jennifer earned royalties from the music that Katrina created, because 
Answer: Katrina sold the rights to the music.

Problem: How does the sentence end?

The platinum was sold and the money realized could not cover the cost of the car. The 
Answer: platinum is pretty cheap.

Problem: How does the sentence end?

I always felt more comfortable at the nursing home and not the old house because the 
Answer:
home was more relaxed.