A or an articles online exercise

a and an - indefinite articles

Use a or an when you say what a thing or a person is. A-an has no plural.

An + vowel

If the following word starts with a vovel, then say an.

Examples: an apple,  an animal,  an uncle

English A or an articles exercises

A or an articles with free online exercises, examples and sentences, questions and A or an articles negative sentences.

Online exercises English grammar and courses
Free tutorial A or an articles. English A or an articles exercises. English grammar easy to learn.