goose（复数）geese battery（复数）batteries city（复数）cities
baby（复数）babies it/she/he（复数）they people（复数）people
is（复数）are this（复数）these that（复数）those
light（复数）lights man（复数）men woman（复数）women
box（复数）boxes boy（复数）boys family（复数）families
knife（复数）knives foot（复数）feet sheep（复数）sheep
tomato（复数）tomatoes potato（复数）potatoes dress（复数）dresses
fox（复数）foxes class（复数）classes bus（复数）buses
horses（单数）horse
