Question

the helicopter land on...roof of.....building. (use the appropriate article)​

Answer 1

The helicopter land on...roof of.....building. (use the appropriate article)

Answer 2

The helicopter landed on the roof of a building.

• A noun is indicated as such without being described by the use of an article. Pronouns and noun phrases are examples that can be modified by articles in addition to those that function as nouns.
• There are two distinct article types in English: definite and indefinite.
• The word "the" is a definite article.
• It restricts a noun's meaning to that of a single thing. Nouns that are singular, plural, or uncountable can all employ the definite article.
• There are two types of indefinite articles. When it comes before a word that starts with a consonant, it is the word "a".
• When a word with a vowel, in the beginning, comes before it, it is the word "an".
• When a word refers to a generic notion rather than a specific entity, the indefinite article expresses this. With singular nouns, the indefinite article is the only option.