Have you written the letter? Question: Choose the option in which the voice…

Answer: Has the letter been written by you?

Original sentence: Have you written the letter? This is present perfect active (have/has + past participle). To change it to passive, follow these steps:

• Step 1: Identify the tense: present perfect (have/has + past participle).

• Step 2: For passive, use has/have + been + past participle.

• Step 3: Make it a question: auxiliary 'has' + subject 'the letter' + 'been' + past participle 'written' + agent 'by you' + question mark.

Why the other choices are incorrect:

• "Has the letter been written?" is passive but omits the agent 'by you', making the transformation less specific than the original question.

• "Had the letter been written?" uses past perfect ('had'), which changes the tense and meaning; the original is present perfect, so this is incorrect.

• "Has the letter been written by you." uses the correct words but ends with a period instead of a question mark. The sentence should be a question and end with a question mark.

Key point: Keep the same tense and preserve the agent (if the original asks who performed the action), and ensure the sentence form (question) and punctuation match the original.