Problem: How does the sentence end?

Russ bought a telescope to view the planet but he couldn't see the star because the 
Answer: star was too far.

Problem: How does the sentence end?

Professor Felicia helped Kayla with the material at the library because 
Answer: Felicia knew it very well.

Problem: How does the sentence end?

Justin doesn't like Brian because 
Answer: Justin hates self-centered people with egos the size of Texas and an attitude.

Problem: How does the sentence end?

Jennifer tended to overthink every decision but Laura was more spur of the moment. 
Answer:
Jennifer missed out on a lot of things.