A. Adverb
B. Auxiliary verb
C. None of these
D. Interjective
🧠 Explanation:
In “He has done it,” “has” is an auxiliary verb, aiding tense formation. For English students, this highlights parts of speech, making it a key topic for studying grammar, linguistic clarity, and sentence structure. Auxiliary verbs support main verbs. Understanding this improves grammatical precision. It’s essential for mastering grammar in communication. Studying auxiliary verbs offers insights into how language conveys action, crucial for English, journalism, and communication.