Story needs to be completed:
Rebecca had one child whereas Christine had two children, so

My choice:
Christine had to pick up two kids from school.

Story needs to be completed:
Parenting a child was natural for Cynthia but not Jennifer because

My choice:
Jennifer children were very bad.

Story needs to be completed:
The structure that Adam was in was more unstable than that of Aaron's because

My choice:
Adam was in an ancient building.

Story needs to be completed:
Trying cases in court better suited Christopher than Justin because

My choice:
Christopher was able to keep their temper under control with the judge.