Problem: How does the sentence end?

Loki was hurt in a fall and decided to get a bandage but left out the alcohol because the
Answer: bandage was needed for the cut.

Problem: How does the sentence end?

Jeremy went to put the fishing line thread through the hook, but struggled with it because the
Answer: thread was thick.

Problem: How does the sentence end?

To learn how to play the electric guitar, Erin hired Monica, a professional guitarist, to tutor her.
Answer: Monica played in a band and had the experience.

Problem: How does the sentence end?

The faster acting medicine came from an herbal solution, not a chemical one. The
Answer:
herbal must be more efficient.