Ответ:

Here is the completed dialogue:

Janet: This party is great!
Steve: 1) A The one with the fair hair?
Janet: Hey, look at that boy over there. Who is he?
Steve: 2) F Johnny. He's Bill's brother.
Janet: Yes. What's his name?
Steve: 3) C Yes, it is.
Janet: He's got lovely blue eyes! How old is he?
Steve: 4) B He's fifteen.
Janet: What's he like?
Steve: 5) D He's tall and thin.