1 A: Did you have a good time?
B: Yes, it was great.
2 A: Where's Alan?
B: Yes, he went out a few minutes ago.
A: And Rachel?
B: I don't know. I haven't seen her.
3 Rose works in a factory. She has worked there for six months.
Before that she was a waitress in a restaurant. She worked there for two years, but she didn't enjoy it very much.
4 A: Do you know Mark's sister?
B: I have seen her a few times, but I never speak to her.
A: Yes. I met her at a party last week. She's very nice.