Identify the sentence that uses an adverb:AThe old man is a careful workerBThe weather is nice.CThe dish tastes delicious.DJohn runs fast.Answer: D. John runs fast. Read Explanation: The sentence "John runs fast." uses an adverb.Explanation:The word "fast" is an adverb because it describes how John runs (modifies the verb "runs").Adverbs modify verbs, adjectives, or other adverbs, and in this case, "fast" is modifying the verb "runs" by indicating the manner of running. Read more in App