Read the sentence.

The students apologized to the teacher when they arrived late for their English class.

Which word is the adverb?

late

To find the adverb in the sentence "The students apologized to the teacher when they arrived late for their English class," we need to identify a word that modifies a verb, adjective, or another adverb. In this case, the most likely candidate is "late," as it modifies the verb "arrived."

To confirm that "late" is indeed the adverb, we can ask ourselves: "How did the students arrive?" The answer is "late," which clarifies the manner in which they arrived. Therefore, "late" is the adverb in this sentence.

The adverb in the sentence is "late".