vocab Unit 4 plus irregular verbs

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Across
  1. 2. synonym of "unknown"
  2. 6. simple past of "to go"
  3. 7. synonym of "ticket for a flight"
  4. 10. Zoll
  5. 13. he/she looks after people on a flight
  6. 14. past participle of "to eat"
  7. 16. Euros/Pounds/Dollars
  8. 17. noun of "to travel"
  9. 18. past participle of "vergessen"
Down
  1. 1. past participle of "geben"
  2. 2. simple past of "fallen"
  3. 3. where your passport/ticket is checked
  4. 4. where you wait to get on an airplane
  5. 5. a person who is traveling by plane, bus, train...
  6. 8. past participle of "to drive"
  7. 9. you carry your clothes etc. in it
  8. 11. when you get ill on a boat
  9. 12. where you get money/tickets/information
  10. 15. a boat that takes passengers