My sister is at home.
We are not at school. We are at home.
My brother is a pupil. He is at school.
Is your mother at home? No, she is at work.
Is your cousin at home? No, he is at school. He is a pupil.
Is your sister a teacher? No, she is a student.
Is your father at work? No, he is at home.
Is your sister a typist? Yes, she is. Is she at home? No, she is at work.
My grandfather is a scientist.
My mother is not a teacher. She is a doctor. She is a very good doctor.