Find the past tense of the words

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Across
  1. 2. sat
  2. 4. play
  3. 8. walk
  4. 10. am/is
  5. 13. interest
  6. 14. are
  7. 15. buy
  8. 16. dislike
  9. 18. copy
  10. 19. look
  11. 21. come
Down
  1. 1. lived
  2. 3. travel
  3. 5. cook
  4. 6. listen
  5. 7. TV watch TV
  6. 8. go
  7. 9. draw
  8. 11. read
  9. 12. get
  10. 17. studied
  11. 19. like
  12. 20. have/has