people at work

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Across
  1. 3. cooks delicious food in a restaurant (4)
  2. 5. delivers letters and packages (7)
  3. 6. teaches children in school (7)
  4. 8. Flies an airplane (5)
  5. 9. helps a doctor in a hospital (5)
Down
  1. 1. sells things in a shop (10)
  2. 2. grows crops in a field (6)
  3. 4. treats sick patient (6)
  4. 7. protects people and catches criminals (6)