What is Dr．Wilson?

M: Dr．Wilson．can I talk to you a minute?
W: Sure．Fred．What is it?
M: I’m worried about my grade in your English class．I really want an A, but my job has kept me busy．

W: Living in the city is very convenient．
M: I think so, but I often think of living in the country．It’s peaceful and quiet．
W: But don’t you think houses in the country can be cold in winter?
M: I don’t think so．