Réponse
:
For how long have they been vegetrians ? ----Since that stopped eating meat !
Since when does she work for that company? ---- Since she left university
Since when does your father have that car? --- For about a week.
Since when is she away on holiday ? --- Since last Saturday
Since when was Lucy in the bathroom ? -- For ages!
Since when fo you know your best friend ? ---Since nursery school.
Explications :
