6. i haven't seen her for a long time

->i didn't see her a long time ago

7. how long have you learnt french?

->how long ago did you start learning French?

8. when did you strart to listen to classical music?

->how long have you listened to classical music?

9. i last saw her 10 years ago

->i haven't seen her for 10 years

10.how long have you bought this car

->when did you buy this car?

11. this is the first time he went abroad

->he hasn't gone abroad before

12.she started driving 1 month ago

->she has driven for 1 month

13.we began eating when it started to rain

->we have eaten since it started to rain

14.it is a long time since we last met

>we haven't met for a long time

15. when did you have it

->how long have you had it?