American English vs. British English

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Across
  1. 3. year(school)
  2. 5. postbox
  3. 7. mobile phone
  4. 10. transport
Down
  1. 1. flat
  2. 2. lift
  3. 4. wardrobe
  4. 6. trailer
  5. 8. lesson
  6. 9. code postcode
  7. 10. can rubbish bin
  8. 11. lorry