Problem: How does the sentence end?

Despite his best efforts, Aaron could not solve Matthew's riddle because
Answer: Matthew was very clever.

Problem: How does the sentence end?

Samantha was always asked to join in games of basketball instead of Maria, because
Answer: Samantha was much taller.

Problem: How does the sentence end?

Ian was always at William 's service during the day, as
Answer: William was very needy.

Problem: How does the sentence end?

Justin installed the new stove in the house while Aaron held the tools because
Answer:
Justin was more knowledgeable.