1. your own answer + 2. your own answer
3. 180 km, a guide called Doug, windy and cold, gaps in the ice too wide for them to cross
4. 1B, 2A, 3D, 4C, 5F, 6E
5. there A -> North Pole, them B -> few people who asked,
they C -> temperatures, him/his D -> Dough, that E -> gaps in the ice, these F -> Cracks
7. attempted, reached, travelled/traveled, was, was, didn't see, flew