Events - Write them in the form of ГДЕ?

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Across
  1. 5. - lesson
  2. 6. - (at) lake
  3. 10. - post office
  4. 11. - countryside
  5. 14. - stadium
  6. 15. - exhibition
Down
  1. 1. - (at) sea
  2. 2. - opera
  3. 3. - (in) river
  4. 4. - work
  5. 6. - date
  6. 7. - shop
  7. 8. - play
  8. 9. - street
  9. 10. - dacha
  10. 12. - railway
  11. 13. - office