Help :( please:/ I have till 2:30pm to hand it in. •_•

Answer:
1. john's 2. Chicago's 3. children's 4. dad's 5. mom's 6. David's 7. student's 8. children's 9. women's 10. sand's 11. jame's 12. child's 13. girl's 14. school's 15. computer's 16. player's
Explanation: