Problem: How does the sentence end?

Jeffrey lived his life with no fears while Brian had fears, because 
Answer: Brian was always anxious and scared.

Problem: How does the sentence end?

It was more likely that Michael would get diabetes than Randy because 
Answer: Randy had a healthy diet.

Problem: How does the sentence end?

The husband made ratatouille for dinner while the wife made a frozen pizza. The 
Answer: wife is less competent at cooking.

Problem: How does the sentence end?

Mark liked drawing so he took art classes instead of music lessons because at the 
Answer:
music lessons he would be unsure of what to expect.