Irregular verbs

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Across
  1. 4. took
  2. 6. ate
  3. 8. learnt
  4. 9. became
  5. 13. went
  6. 14. left
  7. 16. drank
  8. 18. wrote
  9. 19. had
Down
  1. 1. heard
  2. 2. did
  3. 3. gave
  4. 5. said
  5. 7. thought
  6. 9. began
  7. 10. made
  8. 11. saw
  9. 12. found
  10. 15. knew
  11. 17. was