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.
