Find the article in this sentence:

'I'd like to buy an orange."

I'd

An

Buy

Like

Orange

To

An is the article

like, buy are verbs

orange is a noun

to is an infinitive marker

I'd is a phrase

an

Explanation:

The indefinite article (a, an) is used before a noun that is general or when its identity is not known. The indefinite article is often used to indicate one in number (as opposed to more than one).

In this sentence, the article an is used before a singular noun beginning with a vowel sound (orange). It indicates one in number.