单项选择题
A.At a bookstore. B.In a restaurant. C.At the dentist’s. D.In the library.
A.He has learned a lot from his own mistakes. B.He is quite experienced in taming wild dogs. C.He finds reward more effective than punishment. D.He thinks it important to master basic training skills.
A.He’d like a piece of pie. B.He’d rather stay in the warm room. C.He’d like some coffee. D.He’s just had dinner with his friends.