Dialogue

A: Were you talking with your brother
at 4 o´clock on Saturday?
B: Let me think. Yes,I was.
A: Were you eating a sandwich at 1 o´clock on Monday?
B: I´m not sure, but I think that I was.
A: Were you working on a computer at 7 o´clock on Tuesday?
B: I really dont remember.111
A: Were you shopping a coffee at 8 o´clock on Friday?
B: Let me think. No, I wasn´t . I was playing videogames.