Rewrite the following using the correct POSSESSIVE form:
1. the butterflies – the wings …………… the butterflies’ wings
2. the students' books
3. three hour's drive
4. the staff of the department store
5. the cost of living
6. some of my brother's friends
7. the price of bread
8. the baby's pram
9. John's and Paul's wives
10. men's changing rooms
11. the waves of the sea
12. a two hundred metre climb
13. Lucy and Emily's the mother
14. my father’s closest friend's house
15. the president's decision
16. my physics professor's report
17. the park's playground
18. the Smiths' car
19. my mother-in-law's garden
