Объяснение:
1) since ten o'clock
for six months
since Friday
for two hours
for two years
for many years
since I was eight
since April
2) Ben and Jim are friends since 2008.
Net and Sandra have been learning to skate for a month.
Jack has been reading a new book since Saturday.
Paul likes riding horses since he was four.
Molly has been playing football since 5 o'clock.
