Past simple of irregular verbs

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Across
  1. 1. grew
  2. 4. fell
  3. 6. spoke
  4. 7. did
  5. 8. broke
  6. 10. heard
  7. 11. said
  8. 12. kept
Down
  1. 1. went
  2. 2. wrote
  3. 3. took
  4. 5. left
  5. 6. slept
  6. 7. drank
  7. 8. bought
  8. 9. knew
  9. 10. had
  10. 11. saw