听力原文:M: Do you know if the bus station has timetables for buses to Chicago? W: They may not, but I know you can catch a bus to Chicago. What does the man want to know?
【简答题】I don’t know whether you happen ______, but I’m going to study in the U.S.A. this September. A. to be heard B. to be hearing C. to hear D. to have heard