Problem: How does the sentence end?

Although Natalie was a better cook than Emily, 
Answer: Emily was a genius at baking a cake.

Problem: How does the sentence end?

The activity wore out Dennis while Joel was hyper afterwards. 
Answer: Dennis lacks energy and strength.

Problem: How does the sentence end?

When Erin locked her keys in the car she called Megan for help. 
Answer: Erin felt foolish about the keys.

Problem: How does the sentence end?

Ian's dog looks better groomed than Eric's because 
Answer:
Eric did it at their own home.