A Crossword puzzle

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Across
  1. 2. it’s a movie in space
  2. 6. you are … good
  3. 8. on monday is … the last lesson
  4. 11. behind the door is often the…
  5. 13. is it twelwe o‘…
  6. 15. a…has 365 days
  7. 16. the teacher writes on the…
  8. 19. we can play this on computer,smart phone and tablet
  9. 20. a long animal, sometimes toxic
Down
  1. 1. to get into a house,you have to go trough the…
  2. 3. we are the … class
  3. 4. he is a hero and he can fly
  4. 5. say this if you complain to god
  5. 7. rooms have several…
  6. 9. students learn at …
  7. 10. the opposite of sad
  8. 12. …!There‘s a shooting star
  9. 14. students sit on the…
  10. 17. this is the most popular pet
  11. 18. the teacher sits at the…