Question

use article the telephone is _____useful invention.​

Answer 1

Answer:

the telephone is ___an___useful invention.

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Answer 2

Answer:

an

Explanation:

An article is a word used to modify a noun, which is a person, place, object, or idea. Technically, an article is an adjective, which is any word that modifies a noun. Usually adjectives modify nouns through description, but articles are used instead to point out or refer to nouns.

Definite and Indefinite Articles (a, an, the) In English there are three articles: a, an, and the. Articles are used before nouns or noun equivalents and are a type of adjective.