Put the verbs in brackets into the past simple or the

Put the verbs in brackets into the past simple or the present perfect.
1. A: Do you know that man?
B: Oh yes. He's a very good friend of mine. I 1) ...'ve known... (know) him for about ten years.
A: I think I 2) (meet) him at a business meeting last month.
2. A: Mum 1) (lose) her purse.
B: Where 2) (she/lose) it?
A: At the supermarket while she was shopping.
3. A: Who was on the telephone?
B: It 1) (be) Jane.
A: Who is Jane?
B: Someone who 2) (work) in my office for a few years. She's got a new job now, though.
4. A: Who is your favourite singer?
B: Freddie Mercury. He 1) (have) a wonderful voice.
A: Yes, I agree. He 2) (enjoy) performing live, too.