This document provides examples of using the indefinite articles "a" and "an" correctly based on whether the next word starts with a vowel or consonant sound. It lists 10 sentences with blanks to be filled in with "a" or "an" following the pattern of referring to singular nouns that begin with vowel sounds as "an" and those starting with consonant sounds as "a". The essential rule covered is using "an" before words beginning with vowel sounds and "a" before consonant sounds when using the indefinite article.

1. ARTICLES – A, AN
FOLLOW THE PATTERN:
It is _____ egg. It is __AN__ egg.
He is _____ boy. He is __A__ boy
1) There is _____ ash-tray on the table.
2) He is doing _____ question.
3) Julie is writing _____ letter.
4) You’re reading _____ book.
5) It is _____ exercise.
6) We are going to _____ large room.
7) She is writing _____ irregular verb.
8) The pupil is giving _____ ice-cream to him.
9) This is _____ pullover and that is _____ shirt.
10) It is _____ elephant.