Answer:
It is a group of words that can function as a complete sentence, consisting of a subject and verb and expressing a complete thought
The correct answer for the question that is being presented above is this one: "T<span>he queen of Brobdingnag have a boat made for Gulliver because the q</span><span>ueen herself knows that Gulliver is familiar with boats. She has both a boat and a trough of water three hundred feet long made for him.</span>
My friend, Alex, plays tennis.
My = possessive pronoun
friend = subject
Alex = an appositive (which is a noun that renames another noun right beside it) -- though not an adjective, it functions like one to explain which friend
plays = verb
tennis = direct object
hope this helps :)