a/an
a radio
a/an
a hot dog
a/an
an ant
a/an
an eye
a/an
an uncle
a/an
a sheep
a/an
an orange
a/an
an omelet
a/an
a uniform
a/an
an umbrella
a/an
a horse
a/an
an armchair
a/an
a banana
a/an
an apple
a/an
a whale
a/an
a chair
a/an
a university