shop-assistant : may i help you, sir?
          
   mr. yung : er …i wart to buy my wife a gift for christmas, but i don't know what she would like. shop- assistant : how about an evening gown? these are all from paris.
         
  mr. yung : no. she has very good taste in clothes. i don't want to take the risk. shop- assistant : what do you have in mind then?
         
  mr. yung : i'm thinking about jewelry or something valuable and won't be out of fashion. shop- assistant : we've got beautiful jewelry here. not much, but  each one is unique. if you're interested, i can show you.
          
     mr. yung : do you give guarantees of their genuineness? shop- assistant : yes, we do. (he leads mr. yung to another counter.) here we are. well, what do you think?
          
     mr. yung : they are lovely, i must say....can i take a look at that necklace?
           
    shop- assistant : which one? this one?