Problem: How does the sentence end?

Climbing a tree was tough for Michael but easy for Justin because
Answer: Justin had stronger legs.

Problem: How does the sentence end?

Ben enjoyed using the hookah more than smoking a cigarette because the
Answer: cigarette smelled worse.

Problem: How does the sentence end?

Mabel is a nurse and she helps her patients take their medicine before they eat food, even though the
Answer: food is good on an empty stomach.

Problem: How does the sentence end?

Megan asked Angela to drive to the local dentist, because
Answer:
Megan needed a cavity filled.