3.
Holidays
Raspberries
Monkeys
Cowboys
Fairies
Parties
Keys
Cherries
Countries
Mondays
Ladies
Puppies
Days
Spies
Boys
Stories
4.
-s : dolphins, shoes, cakes, toys, gardens, rays, pianos, coins.
-es: dresses, sandwiches, foxes, branches, wishes.
-ies: flies, diaries , strawberries, enemies, abilities.
5.
Shelves, proofs, leaves, halves, chiefs, loaves, knives, thieves, safes, housewives, lives, handkerchiefs, safes.