a or an? (ostrich)
an ostrich
a or an? (egg)
an egg
a or an? (apple)
an apple
a or an? (caterpillar)
a caterpiller
a or an? (bear)
a bear
a or an? (snake)
a snake
a or an?
a fly
a or an? (butterfly)
a butterfly
a or an? (kitten)
a kitten
a or an? (alligator)
an alligator
a or an? (monkey)
a monkey
a or an? (mouse)
a mouse
a or an? (octopus)
an octopus