answer: #Person1# is surprised at Shanghai's new building and the smooth traffic. #Person1# wants to rent a car here. Mr. Zhang warns #Person1# must drive carefully in the downtown area.
documents: #Person1#: Yeah, look at all those new buildings going up! Mr. Zhang, the traffic is pretty smooth. But we were told the roads from the airport to downtown were quite crowded and traffic jams could be as long as half an hour.
  #Person2#: Yes, they were. But it has already past. The traffic from the airport to downtown has been relieved after the completion of Yan'an Aerial Road.
  #Person1#: We've never expected that Shanghai is such a big metropolis, same as New York city. Mr. Zhang, would it be a good idea to rent a car here? I've got an international driver's license with a pretty good record in the States.
  #Person2#: That's wonderful. OK. I'll remember that. But I have to warn you that you must drive very carefully in the downtown area, for there're no separate lanes for motor vehicles and bicycles in some places, and still quite a few people don't take road regulations seriously.