Unit 15 I wonder how I should take a bus

W: Hello ! I’m now trying to take a bus ,but there are too many buttons ,would tell me how to use them?
M: I see ,we have an explanation left on the table. If you follow the direction ,it’s quite simple .
W: I read it ,but I couldn’t understand it. Would you come to my room and tell me how to use them?
M: Oh, certainly.
W: And also tell me how to use orther switches.