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.