Problem: How does the sentence end?

Justin worked on the house to keep ants out and Derrick didn't help, since 
Answer: Derrick was more lazy.

Problem: How does the sentence end?

Justin was a lot more calm in a plane than Jason because 
Answer: Justin always visualized a safe landing.

Problem: How does the sentence end?

He was going to read the magazine instead of the book at the meeting, since the 
Answer: magazine was simpler.

Problem: How does the sentence end?

Kenneth found far more shark teeth on the beach than Brian, which made 
Answer:
Brian jealous of him.