Transportation

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Across
  1. 2. a train system for a city that is under the streets
  2. 6. to show your opinion in how you act or behave
  3. 8. to say yes to something
  4. 10. (n) building roads, buildings, houses, etc.
  5. 12. a passage built underground to let things get between two places
Down
  1. 1. a group of things that work together for a result
  2. 3. different and special
  3. 4. way to move from place to place
  4. 5. 1.6 kilometers
  5. 7. to look around and discover something new
  6. 9. tour ____ person who shows people around a new place
  7. 11. 100 years