单项选择题
A．she was on the bus B．she was not sure whether she had the ten pound notes with her C．she was’ too angry to do so D．she didn’t like to make trouble for others
A．staffs B．lessons C．buildings D．graduates
A．They take a completely-free bus service. B．They experimented a very cheap bus service. C．Part of the street is for buses only. D．They closed the streets to cars.