Problem: The fingernails of Steven grow faster than those of Randy because

My choice: Steven eats a lot more food.

Problem: Brett called a friend to help raking the yard unlike Adam who did it himself, because

My choice: Brett was lazy.

Problem: The awkward Tanya was taking etiquette lessons from Patricia since

My choice: Patricia knew all the right manners.

Problem: Ian was not free at the time of the party but Donald was because

My choice:
Ian was very busy.