Let's challenge!

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Across
  1. 4. It flies in the sky.
  2. 6. You can see a doctor here.
  3. 8. He works in the school.
  4. 11. The first meal of the day.
  5. 13. You can buy many things here.
  6. 15. It’s a big country.
  7. 16. It’s a book.
  8. 19. It’s on your face.
  9. 20. It’s under the ground.
Down
  1. 1. It’s in your pencil-box.
  2. 2. It’s very hot.
  3. 3. It’s big and juicy.
  4. 5. You can read many books here.
  5. 7. It falls from the sky in the winter.
  6. 9. You can go straight or turn left here.
  7. 10. It has a long nose.
  8. 12. It’s the fifth day of a week.
  9. 14. It’s round and yummy.
  10. 17. You can see a film here.
  11. 18. It give us milk.