Ann: Who's this woman in the photo?
Tom: She's my Mum.
Ann: What does she do?
Tom: She's an accountant.
Ann: How does she go to work?
Tom: She goes to work on foot.
Ann: Is the man next to her your father?
Tom: Yes, he is an engineer in a car company.
Ann: Does he go to work by car?
Tom: No, he goes to work by bus.