Dogs Who Help People

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Across
  1. 4. Having the power to do something.
  2. 5. A set amount of time in which people work.
  3. 7. To open and close a mouth quickly, as if going to bite.
  4. 8. Faithful to a person.
Down
  1. 1. To shake with little movements.
  2. 2. People or people and animals who work closely together.
  3. 3. Being in a flat position.
  4. 6. To watch over an area and guard it.