I haven’t met my aunt since I was 10 years old

10. I haven’t met my aunt since I was 10 years old.
=  I last …………………………………………………………………………………

11. This is the first time she has worked with foreigners.
= She hasn’t………………………………………………………………………… 
12. She started to cry two hours ago.
= She has…………………………………………………………………………………….
13. We started to chat on the phone when it began to rain.
= We have…………………………………………………………………………………..
14. We got to know each other when we were at university.
= We have…………………………………………………………………………………..
15. The last time she phoned her parents was 3 weeks ago.
= She hasn’t………………………………………………………………………………..
16. It is a long time since we last went to this restaurant.
= We haven’t……………………………………………………………………………….
17. When did you have this laptop?
= How long …........................................................................................................?
18. This is the first time I have joined such an exciting party.
=I haven’t …………………………………………………………………………………….