1. Most peoplethe North Pole, but Parker Liautaud has. *
have never visited
never visited
visited never
2. Last year, Parker 130 km across the Arctic. *
skied
has skied
have skied
3.In the same year, he alsoa Facebook page about climate change. *
started
has started
have started
4. He stillschool- he's a very young explorer. *
hasn't finished
didn't finish
haven't finished
5. youto the South Pole? *
Have (you ) ever been
Has (you) ever been
Did (you) ever been
6. In 2009 Katie Walterthere and back in twenty days. *
walked
has walked
have walked
7. She was only 17 years old and shea lot of money for charity. *
made
has made
have made
8. Parker and Katiegreat things,but they are both still teenagers. *
achieved
have achieved
has achieved
9. they too much,too young? *
Did do
Havedone
Hasdone
10. Their brainsenough. *
didn't develop
haven't developed
hasn't developed