Problem: How does the sentence end?

Ian always envied Christopher for their wealth, as 
Answer: Christopher had significantly more financial net worth.

Problem: How does the sentence end?

Randy is always late for the first period while Joseph is always on time as 
Answer: Randy is a night owl.

Problem: How does the sentence end?

Jason left the roofing of his house to be applied by Hunter as 
Answer: Jason lacked professional experience.

Problem: How does the sentence end?

I successfully looked up advice for managing relationship intimacy issues online and the library gave me a small amount of information. Thus, the 
Answer:
library was insufficient.