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