An adjective  modifies a noun or a pronoun. To modify a word means to describe the word or to make its meaning more definite. An adjective modifies a noun or a pronoun by answering one of these questions:

• What kind?
• Which one?
• How many?

The usual position of an adjective in a sentence, is that it comes before the noun or pronoun that it modifies.

A sweating, exhausted runner crossed the finish line.

    sweating & exhausted tell what kind of runner
    finish tells what kind of line.

Exercise 1