Réponse :
Bonjour,
1. The conductor has been working in London since 2000.
2. The drummer has been practising for two hours.
3. The musicians have been rehearsing since 8 am.
4. How long have you been studying English?
5. For five years. And I have been learning German since Christmas.
Explications :
SINCE : moment précis, point de départ
( 2000 ; 8 am ; Chhristmas ....)
FOR : durée
( two hours ; five years .... )
