Carl: Hey, Sis. Are you interested in buying some [?] books for school? You can really save some money that way.
Ashley: Well, what do you have?
Carl: Well, let's see. I have a [?] book called, Today's World, and I'm selling it for [?] dollars.
Ashley: Thirty? That's a little expensive for a beat-up book like that.
Carl: Maybe so, but I bought it for [?]. Plus, I wrote a lot of [?] in the book that should help you with the class . . . if you could read my writing.
Ashley: What else are you selling?
Carl: Okay, I have English writing textbook for [?] dollars, a math book for twenty-three, and a [?] for only seven bucks.
Ashley: Uh, Hmmm.
Carl: It's up to you. You know, these things go fast. I mean you have to [?] to my advice as your older brother.
Ashley: Psh. I'll [?] the English book and the novel. I need [?] of those for sure. I think I'll hold off on buying other books for now. [Okay.] Teachers are always changing their [?] about textbooks. [Alright.] And, what are those books?

[ The conversation continues . . . ]