Back to school

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Across
  1. 3. You write with a piece of chalk or a pen on it
  2. 4. You walk on it
  3. 5. You hang pictures on it
  4. 6. You keep some boxes or other stuff there
  5. 8. It shows the time
Down
  1. 1. You look through it and can see trees, cars, birds
  2. 2. You sit on it
  3. 3. There are lots of books there
  4. 7. It's big. You open or close it when you enter a room