Li Ming (L) and John (J) have just finished swimming.
L: How nice and cool the water is! But I’m feeling a bit hungry now. ____ 
J: Sounds good.
L: ____ 
J: Yes, there is.
L:____ 
J: It’s only five minutes’ walk. Let’s go.
L: Yeah. Oh, I almost forgot my CD player.
J: Oh, it’s over there. ____ 
L: Pop music. I often listen to it when I’m not busy. How about you?
J: Light music. I think it can relax myself. ____ 
L: Sure.
J: OK. I can lend you some CDs. I’ll bring them to school tomorrow.
L: Thanks.

下列有关组成生物体化学元素的论述，错误的是（  ）