读对话，根据情景内容选择合适的语句，将语句前的标号填写在题前括号内。(10分，每小题2分)
 
（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.