Yang Ling: Liu Tao, let's go shopping.
Liu Tao: It sounds good. It's sunny and warm.
Yang Ling: Look at that sign. What does it mean?
Liu Tao: It means you can't eat or drink in the shop.
Yang Ling: I'm tried. Let's have something.
Liu Tao: Ok, there is a juice shop over there. Let's go.
Yang Ling: Look, there is a sign, too.
Liu Tao: Yes, it means you can't smoke here.
Yang Ling: Aha, I don't smoke.
Liu Tao: Me too.
