Answer:
Family = Families
poppy = poppies
speaker = speakers
hero = heroes
ox = oxen
arch = arches
loaf = loaves
fungus = fungi
cactus = cacti
horse = horses
shelf = shelves
easel = easels
Holliday = holidays
dragon = dragons
dwarf = dwarves
penny = pennies
louse = louses
fax = faxes
person = people
nucleus = nuclei
reflex = reflexes
party = parties
appendix = appendixes
hoof = hooves
curriculum = curriculums
syllabus = syllabuses
abyss = abysses
bacterium = bacteria
spy = spies
