1. 听录音，回答问题。

1. （1） What happens to the traffic lights?

   A . They don't work. B . They are good. C . They are colourful.
3. （2） Does the policeman need to say anything when he deals with the traffic?

   A . Yes. B . No. C . I don't know.
5. （3） What should we do when the policeman has raised his left hand up in the air and towards us?

   A . We should go on driving. B . We should stop. C . We should do nothing.