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 worn that coat?
6.She has worn it since last winter.
7.Where have you been today?
8.I have been at the hospital.
9.How long has the detective looked for the man?
10.He has looked for him two month.