Nurse:            Good morning, Mr Croft.

Mr Croft:        Good morning, nurse. I want to see the dentist, please.

Nurse:            Have you an appointment?（有预约吗？）

Mr Croft:        No, I haven’t .

Nurse:          Is it urgent?

Mr Croft:        Yes, it is . It’s very urgent. I feel awful. I have a terrible toothache.

Nurse:           Can you come at 10 am on Monday, April 24^th?

Mr Croft:        I must see the dentist now, nurse.

Nurse:           The dentist is very busy at the moment. Can you come at 2:00 PM?

Mr Croft:        That’s very late. Can’t the dentist see me now?

Nurse:            I’m afraid that he can’t , Mr Croft. Can’t you wait till this afternoon?

Mr Croft:       I can wait, but my toothache can’t !