class puzzle

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Across
  1. 2. jack are you here
  2. 6. people learn here
  3. 9. play in me
  4. 10. i have 20 or more people in me
Down
  1. 1. you wear me at school
  2. 3. i teach people
  3. 4. you work on me
  4. 5. there are multiple of me in a class
  5. 7. i hold books
  6. 8. you read me