(It is Sunday. Nancy, Lucyand Mary are talking afterbreakfast.)
　　Nancy: It’s a fine day,isn’t it?
　　Mary: Yes. So what can wedo?
　　Lucy: Let’s go to the park.
　　Nancy and Mary: Goodidea!
　　(In the park )
　　Nancy: Oh, there are a lotof public signs.
　　Mary: Public signs?... Whatdoes that sign mean?
　　Lucy: It means “No smok-ing”.
　　Mary: Thank you.
　　Nancy: And this pub-lic sign means “Don’ttouch.”
　　Mary: Oh, I see.
　　Lucy: Look, the signbeside the river means “Noswimming”.
　　Nancy: But there’s a boy swimming in the river.
　　Mary: We must tell the park keeper!
　　(Run to the park keeper)
　　Mary: Excuse me, Uncle, there’s a boy swimming in the river.
　　 Park keeper: Really? Let’s go and see.
　　(Beside the river)
　　Park keeper: Come up! Can’t you see the public sign?You can’t swim here!
　　Boy: Sorry, Sir.