1. Odpowiedź: Yes, I was. / No, I wasn't.
2. Was your friend chatting online to you last Saturday at 8 p.m.?
Yes, she was.
3. Are you and your classmates having an English lesson on Monday at 10 a.m.?
Yes we are. / No, we aren't.
4. What were you doing yesterday at 6 a.m.?
I was doing my homework.
