Across
- 3. full of people
- 5. last
- 6. relocated
- 9. work
- 11. areas outside the city centre
- 14. transport buses trains and metro systems
- 15. many cars on the road
- 17. a green place in a city
- 18. go back
- 19. a person who lives in a place
Down
- 1. concentrate
- 2. understood
- 4. more difficult
- 5. the part of the street for walking
- 7. a very tall building
- 8. simple
- 10. dirty air or water
- 12. out of the way
- 13. out done
- 16. a place where two roads meet