6. i haven't seen her for a long time->i didn't ........... 7. how long have you learnt french?->how long ago............ 8. when did you strart to listen to classical music?->how long 9. i last saw her 10 years ago->i haven't 10.how long have you bought this car->when did 11. this is the first time he went abroad->he hasn't 12.she started driving 1 month ago ->she has 13.we began eating when it started to rain ->we have 14.it is a long time since we last met>we haven't 15. when did you have it->how long