You've been tidying up, ...........? a) haven’t you b) aren't you c) don't you d) hadn't you

Breakdown of the Problem

To determine the correct tag question for the statement, we need to analyze the structure of the sentence and the main verb.

Relevant Concepts

In English, tag questions are used to confirm information. The auxiliary verb used in the tag question should agree in tense and subject with the main verb.

Analysis and Detail

1. The main statement is "You've been tidying up," which uses the present perfect continuous tense, indicated by "have been."
2. The subject is "you." The corresponding auxiliary verb "have" turns into "haven't" for the negative form in the tag.
3. The correct structure of the tag question is thus to negate the auxiliary verb used in the main statement, which leads us to the option that correctly reflects it.

Verify and Summarize

We check each option:

• a) haven’t you? (correct, matches the auxiliary verb and negation)
• b) aren't you? (incorrect, uses a different auxiliary)
• c) don't you? (incorrect, uses the wrong tense)
• d) hadn't you? (incorrect, uses past perfect instead)

Final Answer

The correct answer is: a) haven’t you.