a baby
Examples:a baby
a car
a duck
a watermelon
a fish
However, if the word is pronounced as a vowel sound, use "an".
Examples:
an hour late
an honest man
an honorable judge
Use "an" before a word beginning with a vowel.
an egg
Examples:
an apple
an egg
an iron
an orange
an umbrella
an American flag
However, if the word is pronounced as a consonant sound, use "a".
a U.S. flag
Examples:
a one-story building
a union
a united front
a unicorn
a U.S. flag
Please note that "a" or "an" is used only for singular noun.
Practice Test:
Use "a" or "an" in the following sentences.
1) It is a ____ library.
2) My mother is ___ wonder woman.
3) This is ___ unusual story.
4) There is ____ one-story building over there.
5) I want to buy ___ US made product.
6) Johnny is ____ honorable man.
7) Give me ___ hammer.
8) My niece is ____ happy baby.
9) That is ___ empty bottle.
10) I never saw ___ unicorn.
Answers: