《状況》　Ted と Kei が教室に向かう途中で話をしている。
Ted: Where did I put it? 
Kei: What are you looking for?
Ted: I can't find my wallet.   
　　 Oh no,  maybe I left it somewhere.
Kei: Gee,  that's too bad.   Where were you last?
Ted: Let's see…  
　　 I went to the bookshop and bought a magazine.
　　 After that,  
       I had to go to the post office to buy some stamps, 
           so  I had it there.
Kei: Then where did you go?
Ted: I walked to school from there,  
　　　　　　　and I remember I paid for my lunch. 
     That means I still had it then.
Kei: That narrows the area quite a bit, 
　　　　　　because it's just after lunch now...
Ted: Of course,  that's it!  
　　 I must've left it in the cafeteria.
     I'd better go down there 
　　　　　　　　　　and see if it's been found!
Kei: Good luck.  I hope it's still there!