单项选择题
A.DO you have anything to declare, sir B.Good morning. May I help you C.How are you feeling today D.What seems to be the problem
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.