Have you visited Africa before?

Yes. I traveled to Kenya last winter with a friend. We had a great time.

I've never been outside of Europe before.

I have never seen anything like it. My sister visited Africa a few years ago and she described it to me.

Have you taken any pictures of wild animals while you were in Kenya?

No, unfortunately, I didn't take any.

I have walked through the desert many times and I haven't met a lion.

Вроде так.