Problem: How does the sentence end?

Donald asked Ian what his actual age was because
Answer: Ian looked so young for his age.

Problem: How does the sentence end?

The young boy wanted to put the baseball on the shelf but it kept rolling off because the
Answer: baseball was round.

Problem: How does the sentence end?

Joe didn't like metal chairs without a cushion because the
Answer: metal was uncomfortable when sitting a long time.

Problem: How does the sentence end?

The language course was very difficult. Nick enjoyed it anyway but Aaron did not as
Answer:
Nick was very academic.