1.- How long have you been in Africa?
2.- I have been there for three years.
3.- How long has he lived in Berlin?
4.- He has lived there since 2002
5.- How long has she been wearing that coat?
6.-She has been wearing it since last winter.
7.-Where have you been today?
8.- I have been at the hospital
9.- How long has the detective been looking for the man?
10.- He has been looking for him two months.