A、Forty minutes. B、Twenty minutes. C、Eighty minutes. D、Seventy minutes. B

M: My classmates are looking forward to this summer. They all want to go home. They have been very busy with their study this semester.
W: I understand. Perhaps they are counting the days.
Q: What can be inferred about the man’s classmates?

W: I suppose the traffic in the city is heavy at the end of the day when people are leaving the city for homes.
M: Yes. The worst time is between six and seven. It sometimes takes me forty minutes to drive home. That’s twice the time it does when there isn’t much traffic.
Q: How long does it take the man to drive from the city to his home when there isn’t much traffic?