Choose the Correct question tag to complete the following sentence: A…

The correct answer is Option (1) → aren't you?

Question tags:

• A positive statement takes a negative tag, and a negative statement a positive tag.
• The tag repeats the helping verb of the statement in the same tense, followed by a pronoun for the subject. A negative tag is contracted (n't).
• This sentence:
  • "All of you are chess players" is positive and in the present, with "are" as the verb.
  • The subject "All of you" is taken up by you.
  • So the tag is "aren't you?"

Complete sentence: All of you are chess players, aren't you?

Why the Other Options are Incorrect?

Option 2: did not you? — Incorrect.

• "Did" is the past helping verb for a simple past statement. The statement has "are".
• "Did not you" is also not a natural tag. The contracted "didn't you" is used.

Option 3: have not you? — Incorrect. "Have" goes with a statement in the perfect tense (You have finished, haven't you?). The statement uses "are".

Option 4: were not you? — Incorrect. "Were" is the past tense. The statement is in the present.