22.Could you tell me how often the bus comes?
22.请问公交间隔多久来一趟?
A.Yes, the bus runs until midnight.
A.是的,一直到半夜都有公交车。
B.No, I'd rather take the subway.
B.不,我宁愿乘地铁。
C.About every 15 minutes.
C.大约每15分钟。