Back to school

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Across
  1. 6. give
  2. 7. how people act and react
  3. 8. when you do something not to do something else
  4. 9. when the spine is not straight
  5. 11. the English term for your studies
  6. 13. make things better
  7. 14. when you pass your exams
  8. 15. medical problem which can lead to death
Down
  1. 1. training period
  2. 2. a prothesis or a support
  3. 3. when it hurts
  4. 4. part of your body
  5. 5. when you learn your future job
  6. 6. muscular paralysis
  7. 10. when you collect people's opinions
  8. 12. something between skin and device