Carlos: Could you tell me .. .? I was wondering ... (4)________________ is teaching English? Ms. Locke: Let's see. Mr. Jones is teaching English. Carlos: (5)________________ do classes begin? Ms. Locke: They begin on Monday. Carlos: (6)________________ do books cost? Ms. Locke: I'm not sure. (7)________________ classes are you taking? Carlos: Four classes. Ms. Locke: Hmmm . . . it depends on the classes. You should check with the bookstore. Carlos: OK, I will. Thanks.