(1) A: Here is our music club. B:____ A: Of course. I'm good at playing the guitar. (2) A:_____ B: I've got a toothache. A: Open your mouth. Say “ah… “ (3) A: Hello.______ B; Certainly. A: Thank you. B: My pleasure. (4) A:____ B : They are sixty-five yuan. A: I'll take them. B: Thank you. (5) A :Hi, Peter. I' d like to invite you to my birthday party. B: Cool!_____? A: It's on December 20th at my home. B: Sure. I'd love to.