[Q]: How does the sentence end?

Mary converted to Christianity and asked Erin about how to pray as a Christian because 
OPTIONS:
- Mary was previously an Atheist.
- Erin was previously an Atheist.

[A]: Mary was previously an Atheist.
QUES: Continue writing.

Kevin had become the victim of mail theft several times but Hunter never did because 

OPTIONS:
- Kevin had a secure mailbox.
- Hunter had a secure mailbox.
+++++++++
ANS: Hunter had a secure mailbox.
Problem: How does the sentence end?

Making play dough only required two ingredients which Kyle had on hand, but not Eric, so 
OPTIONS:
- Kyle finished the project quickly.
- Eric finished the project quickly.
Answer: Kyle finished the project quickly.
sentence: William knew pregnancy much better than Derrick , so  OPTIONS:
- William made sure to be elsewhere for the birth.
- Derrick made sure to be elsewhere for the birth.
complete: Derrick made sure to be elsewhere for the birth.
Christopher bought new crystal plates from Kevin because 
OPTIONS:
- Christopher wanted to give it for a gift on Christmas.
- Kevin wanted to give it for a gift on Christmas.
Christopher wanted to give it for a gift on Christmas.
Problem: Continue the following story.

Erin thought the house was haunted but Natalie disagreed. 
OPTIONS:
- Erin had long believed in ghosts and the paranormal.
- Natalie had long believed in ghosts and the paranormal.
Here's how I want to continue it:
Erin had long believed in ghosts and the paranormal.