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.
1.There are five people in Mark's family.
( )2.Mark's father is a worker.
( )3.Mark's mother walks to work.
( )4.Mark doesn't go to school on foot.
( )5.Mark loves his family.
( )