উত্তর: গ) an adverb
In the sentence “He came to office late”, the word ‘late’ tells us when he came. It describes the verb ‘came’, so it is an adverb.
Adverbs are words that describe verbs, adjectives, or other adverbs. They explain how, when, where, or to what extent something happens. Here, ‘late’ answers the question “When did he come?”, which is the main function of a time adverb.
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Not a noun: ‘Late’ does not name a person, place, or thing.
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Not an adjective: It does not describe a noun. For example, in “He is late”, ‘late’ is an adjective because it describes ‘he’.
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Not a preposition: It does not show a relationship between words like “in” or “on”.
So, analyzing the sentence:
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Subject: He
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Verb: came
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Word describing the verb: late → adverb
Examples of ‘late’ as an adverb:
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She arrived late yesterday.
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They left the class late.
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We finished our work late at night.
All these examples show that ‘late’ tells when the action happens, which confirms that it is an adverb.