Doctor：Hello, what can I do for you today?   

Susan：Well, I’ve got a terrible stomach-ache and I keep needing the toilet.  

Doctor：I see. Well, with those symptoms maybe you’ve got food poisoning. What have you eaten recently?  

Susan：Well, I went to a seafood restaurant last night and I ate lots of oysters.  

Doctor：Hmm. It may be those then, especially if they were raw. Well, I’ll give you these tablets and you should feel fine by tomorrow.  

Susan：Ok. Thank you very much.