Problem: How does the sentence end?

Rebecca but not Erin needed to use a coccyx cushion, because
Answer: Erin did not experience tailbone pain while sitting.

Problem: How does the sentence end?

Brian gave Joseph a haircut to trim their ends, because
Answer: Brian had a cosmetology license.

Problem: How does the sentence end?

Angela wondered what brand of jeans Jennifer was wearing because
Answer: Jennifer was wearing an unusual logo.

Problem: How does the sentence end?

Leslie asked Robert for some help in small claims court, but
Answer:
Robert had forgotten how to file.