Traveling

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Across
  1. 2. you sailed with this from Callais to Dover
  2. 4. have two wheels
  3. 5. you see this type of cars often in New York
  4. 7. expensive way to fly
  5. 8. its like a train under the city
  6. 10. can fly
  7. 11. the boat does this
Down
  1. 1. the car does this
  2. 3. can go under the water
  3. 6. drive on streets
  4. 9. goes on rails