Réponse :
Bon, je suis pas très sur mais je pense que c'est bon.
3. They knew each other since their first day at school
4.How long have you do that puzzle ?
5.We have sunbathe since lunchtime
6. They wanna a dog for ages
7. How long your brother have talke on the phone ?
8. We haven't heard from Kate since a long time
9.I've tried to fix my bike for nine o'clock this morning