More about dogs

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Across
  1. 3. Man's best friend.
  2. 4. A rope or chain used for controlling a dog.
  3. 6. Relating to the dog.
  4. 7. Dog is the descendant of ____________.
Down
  1. 1. A band of leather that is put around a dog's neck.
  2. 2. Shelter for dogs.
  3. 5. Dry pet food.