Question

I live – the 7th floor at 21st Oxford Street

Answer 1

I live at the 7th floor at 21st Oxford Street.

• Prepositions are words that are short and are words that are utilised in sentences to indicate the relationship that nouns, pronouns, or phrases have to other elements of the sentence in a particular sentence in question. Prepositions are frequently used before a noun or pronoun in the end of a phrase.
• According to the Cambridge Dictionary, a preposition is "a word that connects a noun, a noun phrase, or mostly a pronoun to another word, mostly to a verb, or maybe another noun, or an adjective." Prepositions are "words or rather to be said precisely, groups of phrases, such as in, from, off, out of and on behalf of, used before a noun or pronoun to denote the place, position, time or manner in which an action is being done," according to the Oxford Learner's Dictionary.

Here, the sentence is given as,

I live __ the 7th floor at 21st Oxford Street.

Here, the preposition will be,

I live at the 7th floor at 21st Oxford Street.

Hence, the correct sentence is, I live at the 7th floor at 21st Oxford Street.

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