Answer: "It's a dog" and "Who's that?"
Explanation:
The comma is putting together and shortening 'it is' and 'who is'.
Answer:
any information that helps the reader better understand the story
Explanation:
The kind of information that a writer should deliver to the reader using dialogue is any kind of information that would help the reader better understand the story.
The writer owes it to the readers to include narration that would help build the story from start, to rising action, climax, falling action, etc so that the readers would understand the plot and the characters.
The narrator seems to be reading or writing a biography. Unless, the narrator is the main character in the story. The narrator’s point of view is usually told is descriptive detail because they either experienced the events or was a background character in the story/documentary that is being told. -sorry if that wasn’t the question.
Because it was a amazing book