Complete with All, both, either, neither or none

1. Jack and Nancy are very annoying. I haven't invited _____ of them to my party.
2. ____ polar bears and elk travel long distances to find food.
3. If was very difficult for my parents to find their way around Rome, because ____ of them speak Italian.
4. ____ of the hotel staff will be happy to help you if you need anything.
5. ____ of the backpackers knew how to put up a tent so I had to help them all.
6. A: Would you like to go on a cruise or go camping in the summer?
B: _____. I don't mind.
7. Charlie and I are going to Madrid this year. ______ of us have visited the city before and we loved it.