Past forms of verbs

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Across
  1. 1. cut
  2. 3. bought
  3. 4. did
  4. 5. became
  5. 6. began
  6. 8. drank
Down
  1. 1. caught
  2. 2. came
  3. 3. was/were
  4. 5. built
  5. 6. burnt
  6. 7. dug