[Q]: How does the sentence end?

The lady walked up to Rachel but not Betty because

[A]: Rachel was a familiar face to her.

[Q]: How does the sentence end?

When I planned the built of my home, I decided to use hardwood instead of carpet on all the rooms because the

[A]: hardwood is easy to clean.

[Q]: How does the sentence end?

Tickets to the show were left for Samantha, but not for Amy because

[A]:
Samantha knows the show's host.