Problem: How does the sentence end?

The schedule of Elena is much more packed than Christine's. 
Answer: Christine is a very laid back person.

Problem: How does the sentence end?

Katrina eats more natural food than Sarah because 
Answer: Sarah doesn't care to live the healthiest lifestyle possible.

Problem: How does the sentence end?

The needle cannot penetrate into the board on the wall because the 
Answer: needle is weak.

Problem: How does the sentence end?

The rock store of Christopher was more successful than Brett's because 
Answer:
Christopher had better crystals in stock.