[Q]: How does the sentence end?

She preferred brushing her teeth with the manual toothbrush rather than the electric toothbrush because the

[A]: electric toothbrush was advanced for her.

[Q]: How does the sentence end?

Christopher was a novice jeweler compared to Matthew's expertise, so

[A]: Christopher was the dealer swindled by a fake sapphire.

[Q]: How does the sentence end?

The characters in Aaron's novel were more unique than Kyle's because

[A]:
Aaron is the more creative person.