Put the verb in brackets ( ) into the correct tense

Put the verb in brackets ( ) into the correct tense (Present Perfect, Present Perfect Continuous or Past simple).
1)1. A: How long you (know) Sally?
B: For three months.
2)2. A: When you (meet) her?
B: In July.
3. A: Thats a nice watch.
B: Yes, I (buy) it when I was in Switzerland.
4. A: Its ten oclock. How long you (play) that computer game?
B: Three hours so far!
5. A: I (be) ill for a few days.
6. A: Paula (live) in Africa when she was a child.
7. Im very tired because I (not sleep) for twenty-four hours.
8. We (stay) in Tenerife for our holiday four years ago.
9. A: I (not see) you for ages. How are you?
B: Im really well, thanks.
10. A: Pat (do) yoga since she was twenty.
B: I can see that. Shes really good.
11. Kate (work) here for nine months but shes leaving next week