How much of ... have you done, seen? A: I’m watching Game of Thrones. B: Oh yeah? Where you at?

A: Have you finished filing the incident reports? B: I’m doing it alphabetically. A: Where you at? B: The R’s.

A: I’m reading The Master and Margarita. B: I read it in high school. Where you at? A: The part where Margarita flies over Moscow.