Who is it?

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Across
  1. 2. he is in my bedroom
  2. 6. he is in the school library
  3. 7. he is a pupil, he is wearing a uniform
  4. 8. he is in an office
Down
  1. 1. he is in the school kitchen
  2. 3. he is in a classroom
  3. 4. he is a pupil, he helps, he is in the playground
  4. 5. he is in the school infirmary