R: How long have you been living in Africa?
W: I have been living in Africa since 1998.
R: How long have your guide been working with you?
W: He has been working with me for two years.
R: What else have you been doing in Africa?
W: I have been taking photos for my guidebook.
R: How long have you been traveling around Kenya?
W: I have been traveling since 6 a. m.
R: Have you been walking around Kenya?
W: I have been driving and walking.
R: Have you been riding elephants too?
W: No, I haven't been riding elephants. But I have been sending photos of elephants and many other animals to some magazines. I've sold most of my photos. I have been thinking of becoming a full time photographer.
R: I have been considering changing my job for two years!