Grammar: a/an/some/any

What can you see in the pictures?

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Grammar: a/an/the

We often need to use a, an  or the when we talk about nouns.

(image: http://www.kienthucduhoc.com)

We use a with consonant sounds. For example, computer, pen, teacher, banana
We use an with vowel sounds. For example, orange, apple, umbrella.