补全对话, 每空一句。

Doctor: Good morning!

Tom: Tom.

Doctor:

Tom: I'm not feeling well. I have a toothache and I can't eat anything.

Doctor: When did it start?

Tom:

Doctor: Let me examine you. Open your mouth and say "Ah", please.

Tom: Ah……Is it serious?

Doctor:  Just stop eating candies and take the medicine. You will feel better soon.

Tom: How often should I take the medicine?

Doctor:

Tom: Thank you.