1. a hat - hats
2. a basement - basements
3. a dress - dresses
4. a boss - bosses
5. an exercise - excercises
6. a watch - watches
7. a glove - gloves
8. a sock - socks
9. a drum - drums
10. a room - rooms
11. an earring - earrings
12. a purse - purses
13. a niece - nieces
14. a woman - women
15. a child - children
16. a mouse - mice
17. a tooth - teeth
18. a person - people
Exercise 8.2