Woman: Excuse me. Where's the underground station?
Market's there. Can you see that sign?
Woman：Yes. Thank you. I just from Shanghai. The sign for the underground station there is red.
Mark: I see. There are different signs in different cities.
Woman: In the UK, the sign is a big red . You can see the word-“UNDERGROUND" in the middle.
Mark: Are there any special signs in your country?
Woman: Yes. We have some animal signs. Sometimes the animals use the roads too. We mustout for them.
Mark: That's interesting.
