1.
A: Did you have a good time?
B: Yes, it was great.
2.
A: Have you seen him?
B: Yes, he was out a few minutes ago
A: And Rachel?
B: I haven't seen her
3. She has been working there for six months.
Before that she was a waitress in a restaurant. She had been working there for 2 years, but she didn't enjoy it very much.
4. B: I saw her a few times, but i have never spoken to her. Have you ever spoken to her?
A: Yes. I met her at a party last week.