A) I've lived in Rome since 2008.
b) I've been here,since 18:00.
c) I've been learning English,since I went to the 1st form.
d) I've been waiting for Mary for 30 minutes.
e) I've known Jane since I was a child.
f) I've been wathing TV for 2 hours.
g) I've been doing my homework since I came home.
h) I've been reading the story for 20 minutes.
i) I've been writing these grammar exercises,after I did English exercises.