exercise 2 Write the plural forms of the following nouns. Read them aloud with your partner. Then listen. Check the meaning if needed.
1. nephews 
2. nieces
3. churches
4. dishes
5. bays
6. hobbies
7. factories
8. alleys
9. opportunities
10. scenarios 
11. mosquitoes/mosquitos
12. tomatoes
13. lives
14. thieves
15. roofs
16. geese
17. men
18. trout
19. headquarters
20. crises

exercise 3
1. a switch
2. a berry
3. a half
4. a knife
5. a mouse
6. a child
7. an echo
8. a series
9. a phenomenon
10. a person
11. a leaf
12. a reindeer
13. a Japanese

exercise 4
Change the nouns in the sentences into the plural form. Remember to change the verbs and the pronouns as well.
1. Honest people don't have to worry about meeting the police if thieves break into their homes.
2. Those babies still have broken teeth and long, grey hair growing from their ears.
3. My godchildren have sheep and deer but they have never seen lice or mice.
4. The wolves in the stories eat calves but not the horses.
5. There are shelves with rainbow trout on them in local stores.