Chapter 1

       A-AN USAGE    

we use A in countable noun with consonant first letter.

ex.  

A book.
A worm

we use An in countable noun with vowel first letter.

ex. 

   An orange 

      An apple

Exercise 1.0

______ Chair

______ Englishman 

______ University 

ans.

1. a

2. an

3. a