Jacob's amazing crossword puzzle

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Across
  1. 4. The longest river in England.
  2. 5. The writer of A Clockwork Orange. (Clue: the answer can be found in this classroom)
  3. 7. The writer of Romeo & Juliet
  4. 10. The English word for "overal". (Clue: the answer can be found in this classroom)
  5. 11. The word "scolionophobia" means to have fear of _____. We hope you don't have it!
  6. 13. The first word spoken on the moon by a human. (Clue: it is an American city)
Down
  1. 1. The only American state whose name is just one syllable.
  2. 2. Only two words in English end in "-gry". Angry is one. The other is _____.
  3. 3. The English word for "aanval". (Clue: the answer can be found in this classroom)
  4. 6. The only word in English that begins and ends with the letters "-und". (Clue: subway)
  5. 8. One the biggest bands ever. (Clue: the answer can be found in this classroom)
  6. 9. The word "triskaidekaphobia" means extreme fear of the number _____.
  7. 12. This country has more English speakers than the United States.