What do these people do?

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Across
  1. 4. This is a teeth doctor
  2. 5. This person builds or designs roads, bridges, machines.
  3. 7. This person designs buildings.
  4. 10. This person helps customers in a shop.
Down
  1. 1. This person writes news for newspapers or reads them on TV.
  2. 2. This person helps doctors take care of sick people in hospitals.
  3. 3. This person welcomes guests in a hotel or an office.
  4. 6. This person plays a piano, a guitar, or a violin in a band.
  5. 7. This person performs in a play, film, or television.
  6. 8. This person cooks food in restaurants.
  7. 9. This person helps tourists and shows them around the city.
  8. 11. This person flies a plane.