May I ask you a little favor?Yes,please.When can I catch the bus for Tianmu?At the bus stop in front of that drugstore on the next street.How do I know the bus bound for Tianmu?You will notice the route number six on the front of the bus.And you should get off at the fifth stop.What is the fare?Seven dollar only.Thank you very much for your kindness.Here comes the bus!You had better hurry up.Where can I get a bus to the zoo?You can get the bus in front of the city hall.Does this bus go to the United Nations Head_quarters?