Shop-assistant: What can I do for you?
You: I would like to buy something for my little sister.
Shop-assistant: Well, how old is she?
You: Tomorrow she has been 4 today.
Shop-assistant: Really? What about this pretty doll?
You: Oh, no! There are ten or fifteen dolls in our flat. They are everywhere: on the sofa, on the chair, on the computer...And our mother has already bought her a new nice doll.
Shop-assistant: Sorry, it's awful. Well, what about this drum?
You: Oh, no! Our aunt has already brought her one drum. It's so noisy! Shop-assistant: Let me see. Oh, look! A teddy-bear.
You: Never! She has got seven or nine taddy-bears.
Shop-assistant: Well, I don't know...May be puzzles?
You: Yes! Wonderful! Two ... No! Three! How much do they cost? Shop-assistant: Three dollars.
You: Here you are.
Shop-assistant: Well, your change...
You: Thank you. I have done it! I have just bought a present!
Shop-assistant: You are welcome!