необходимо поставить в Present Perfect и Past Simple1. A:How long .....

Нужно поставить в Present Perfect и Past Simple
1. A:How long ..... You (know) Bill?
B: we (be) friends for a long time. For more than twenty years.
A: .... you .... (Meet) at school?
B: No, we (work) at the same restaurant in 1985.
2. A: where do your parents live?
B: they (live) in Cheltenham since last year. But before that they (live) in London.
A: why ... They .... (Leave) London?
B: because my dad (retire)
3. A: you look tired. How long .... you ... (Be) at work today?
B: since eight o'clock this morning
A: ... You ... (Not go) for lunch with the others?
B: no, I (not have) time