Problem: How does the sentence end?

Victoria set some goals, but Monica tried to make her fail. 
Answer: Monica was feeling jealous.

Problem: How does the sentence end?

When the software malfunctioned Cynthia was able to fix it but Elena couldn't as 
Answer: Cynthia is a computer wiz.

Problem: How does the sentence end?

We decided to adopt the small dog instead of the big dog because the 
Answer: big dog seemed harder to take care of.

Problem: How does the sentence end?

Everyone says that Jeffrey plays basketball, a lot  better than Eric. This makes 
Answer:
Jeffrey very happy.