阅读短文并判断句子是否正确。

    Look at the picture of my family. It's a big family. They are my grandfather, grandmother, my father, my mother and me. My grand­parents are old. They don't work. My father is a doctor. He drives to work. My mother is a worker. She goes to work on foot. My name is Mark. I'm a student of Grade 5. I walk to school, too. I love my family.