Question

Books are the most faithful friends.
(Add question tag) ​

Answer 1

Answer:

Books are the most faithful friends, aren't they ?

Answer 2

Answer:

Books are the most faithful friends, aren't they?

Explanation:

A tag question is a question added at the end of a sentence. A tag question following an affirmative statement generally has the form of a negative question, with the meaning: Isn't that true? A question tag always consists of the helping verb of the tense and the pronoun used in the main clause.