Problem: How does the sentence end?

Laura is very talkative at parties when being compared to Rebecca, even though 
Answer: Rebecca is more energetic.

Problem: How does the sentence end?

Erin never had as much money as Patricia because 
Answer: Erin did not spend time managing her finances.

Problem: How does the sentence end?

Jennifer was trained to be able to safely deliver Samantha's infant son, because 
Answer: Samantha was pregnant.

Problem: How does the sentence end?

Betty made rice wine vinegar to bring it to Samantha, since 
Answer:
Samantha was unable to make it themselves.