[Q]: How does the sentence end?

At the meeting, I greeted the woman at the elevator instead of in the office because she knew where the

[A]: elevator was.

[Q]: How does the sentence end?

Nelson was a better freelance photographer than Justin, because

[A]: Justin only took one photography class in college.

[Q]: How does the sentence end?

Trying to train a hamster is easy for Joel but not Nick because

[A]:
Joel has a lot of patience with animals.