M: Thanks so much for coming to our house. My wife and I really need someone to look after the children. After we had our first baby 6 years ago, my wife left her job as a lawyer to care for him. Then we had a little girl. That was 2 years ago. But my wife has decided to start teaching at a university, so we'd like to hire someone to watch them during the day. ,F: Well, I have a lot of experience taking care of children. I started baby-sitting my own little brothers and sisters when I was in middle school. I also looked after other people's children to make money when I was in high school, and last year I took the Red Cross safety course so I know basic first aid.
(A) M: As you only started looking after your sister when you were in university, I doubt your experience. (B) M: You started looking after children ever since middle school, so it seems that you are really experienced. (C) M: So your experience of looking after kids started with your only brother when you were in high school. (D) M: Excuse me, could you repeat the question?
B