阅读短文，判断句子正误。

    I have a big family. They are my father, mother, sister and I. We love each other very much. We like to do different things. My father often watches TV after work. My mother always cooks delicious food for us. Sometimes I help my mother do the housework. My sister is a student. She always studies hard at school. We sometimes go for a walk after supper. I have a happy family.