Bonjour voici les réponses à tes deux exercices :
6)
a. How many years have you been practicing street dancing ?
b. How long have you been playing the violin?
c. How long have you studied this Shakespeare play ?
d. How long have you been reading poetry?
e. Who long have you played in a band ( with your friend Paul ) ?
f. Since when your mother has been interested in blues ?
g. For who many years your father tried to do impersonations ?
7)
a. since
b. for
c. for
d. since
e. since
f. for
g. since
h. for
i. since
Voilà passe une bonne soirée