Read the passage and answer the questions below

My name is Anna. I am seven years old. I have a big family. I have a father, a mother, a brother, and a sister. We live in a small house. Every morning, I go to school by bike. My brother goes to school by bus. My sister is too young to go to school. My father is a doctor, and my mother is a teacher.

Is Anna’s sister old enough to go to school?