单项选择题
A．No, Nothing interests me less than smoking. B．Yes. I have never smoked in my life. C．No. Only once in a while. D．Yes. And I hate others smoking in my fac
A．Is it a real emergency B．Do you have an appointment C．In that case. you'll have to wait. D．I'll talk to the dentist and squeeze you irk
A．You're welcome. B．Never mind. C．It doesn't matter. D．It's just OK.