ABC

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Across
  1. 2. Man's best friend
  2. 3. Search Engine Marketing
  3. 8. Has a trunk
  4. 9. Large marsupial
Down
  1. 1. Content Marketing
  2. 4. Search Engine Optimisation
  3. 5. Pay Per Click
  4. 6. Flying mammal
  5. 7. Likes to chase mice