1. __How long have they studied English_____?
They' ve studied English __since_ they were einght.
2. _How long has he been in prison___?
He' s been in prison ___for_ six months.
3. __How long have you collected shels_____?
We' ve collected sheels _since_ our first trip to the beach.
4. __How long has she managed the band_____?
She' s managed the band __for_ two years.
5. _How long have they played the folk music____?
They' ve played folk music __since_ 1995.