1. Mother is older than her sister.
2. Mother is younger than her father.
3. Father is taller than his brother.
4. Father is younger than his mother.
5. Children are stronger than their grandparents.
6. My cousin Sam is stronger than his sister.
7. I am thinner than my brother.
8. It is colder today than yesterday.
9. The nights are shorter in summer than in winter.
3.
1. My grandfather is the oldest member of our family and my little sister Amy is the youngest. She is only two. We have a cousin Silviu. He is seven. So he is older than Amy but younger than I am. Of course, I am stronger than Silviu and my father is the strongest of us all.