other (function) · 1 of 9 · _
Correct answer
a
Official answer
a
Explanation
“A” is used before a singular noun that starts with a consonant sound, as in “a country,” when no particular one is meant; before a vowel sound English uses “an,” as in “an idea.” In reading practice, it is a separate one-letter word, so keep it distinct from the word that follows instead of blending them together.