Dialogues

A: Were you doing homework at 5 o'clock non Friday?
B: I really don't remember. I think I wasn't. I think I was watching TV
A: Was your father watching the football match on Saturday morning?
B: Let me think. Yes, he was
A: Were you having diner with your family last night at 9 o`clock?
B: I'm not sure. No, I wasn't. I was watching a film.
A: Was your sister checking e-mails last night at 10 o'clock?
B: I'm not sure. I think she was sending text messages
A: Was your mather walking the dog at 8 o'clock this morning?
B: Let me think. No, she wasn't. She was having breakfast
A: What was the teacher writing on the board 15 minutes ago?
B: I really don't remember. I don't know!