Just a crossword in English

12345678910111213141516171819
Across
  1. 2. The biggest star
  2. 7. A place where planes land
  3. 9. A device used to call people
  4. 10. A shape with three sides
  5. 11. A place where the books are kept
  6. 14. The opposite of " begin "
  7. 15. The day after Friday
  8. 16. The red planet
  9. 18. The main language spoken in Brazil
  10. 19. The capital city of France
Down
  1. 1. The natural satellite of the Earth
  2. 2. The largest desert in Africa
  3. 3. A device that shows time
  4. 4. Opposite of "cold"
  5. 5. The largest planet in the solar system
  6. 6. The first month of the year
  7. 8. A global computer network
  8. 12. Frozen water
  9. 13. A flying vehicle
  10. 17. A person who writes codes