Badly described crossword

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Across
  1. 4. One of these leaders died recently
  2. 5. The british queen ____ over 70 years
  3. 7. Britain loved doing this back in 1600-1900
  4. 8. We have about this in school at the moment
  5. 9. When you go to someone
  6. 10. inhabitant that is not originally from there
Down
  1. 1. America were plastered with these
  2. 2. We have it!
  3. 3. Oslo is this to Norway
  4. 6. Common designation of inhabitants in an area