[Q]: How does the sentence end?

Jill was hosting a fancy party and needed to buy only expensive foods. She got matsutake mushrooms instead of apples to eat because the

[A]: apples are cheap.

[Q]: How does the sentence end?

Rebecca will jog past Sarah every morning because

[A]: Rebecca prefers to be in first place.

[Q]: How does the sentence end?

The lung was infected after the surgery while the heart was still clean, since the tools used on the

[A]:
heart were sanitary.