BACK TO SCHOOL

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Across
  1. 3. you open this to let some fresh air in
  2. 4. draw lines with this
  3. 6. keep books here
  4. 9. the teacher writes on this
Down
  1. 1. keep your worksheets in this
  2. 2. surf the internet from this
  3. 5. you tell the time with this
  4. 6. something to sit on
  5. 7. a piece of wood you open to enter a room
  6. 8. you read this