Réponse:
ex 1 :
4.I've known Sue since two years
5.I've got a camera since 1989
6. ' They've been married since six months
7. She has been studying medicine since three years
8.Dave has played piano since he was 7
ex 2 :
1. I've lived in (ta ville) since I was born
2. I've been going to college since 4 years
3. I've been learning piano since I was 8
4. I've known this girl for 3 years
5. I've had a dog for 9 years
