[Q]: How does the sentence end?

The first day of school was causing Jeffrey anxiety but Brett was excited about it, since

[A]: Brett was generally comfortable in social situations.

[Q]: How does the sentence end?

Lindsey answered the phone and took the message but not Amy because

[A]: Amy was the janitor.

[Q]: How does the sentence end?

I decided to take the lift and not the escalator because the

[A]:
lift looked cleaner.