my vocabulary

1234567891011121314151617181920
Across
  1. 4. open-minded
  2. 11. forms of energy that are renewed as quickly as they are used
  3. 13. the opposite of urban
  4. 14. students who leave school at an early age
  5. 15. very poor
  6. 16. "must" in the past
  7. 18. obligatory and mandatory
  8. 19. the plural of "mouse"
  9. 20. the past of throw
Down
  1. 1. not able to read or write
  2. 2. to work together "co....."
  3. 3. the adjective of "laugh"
  4. 5. cutting down trees in the forest
  5. 6. a person who hates spending money,
  6. 7. a modal verb for prohibition
  7. 8. synonym of audacious
  8. 9. very rich
  9. 10. planting trees in the forest
  10. 12. a female servant
  11. 17. past participle of write