sort 4 corssword puzzle

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Across
  1. 7. being compulsory required
  2. 9. a person in charge of a cabinet department in a government
  3. 10. not moving
  4. 13. average
  5. 15. parts of a machine
  6. 16. 2nd month of the year
  7. 17. place where you make things
Down
  1. 1. is 100 years
  2. 2. a story containing a puzzling crime that has to be solved
  3. 3. carrying and turning over letters,goods,etc
  4. 4. a complete list of items someone owns
  5. 5. means you won
  6. 6. a building with private or semi private rooms
  7. 8. appearance of a place
  8. 11. writing paper
  9. 12. study of past events
  10. 14. a book that gives addresses,phone numbers, etc in alphabetical order