Choose the correct passive voice transformation of the question Did not they tell you to be here by six o clock?

Introduction / Context:
This is a voice transformation question that asks you to convert an active voice question into the passive voice while preserving tense and meaning. The original active question is Did not they tell you to be here by six o clock. We need to identify the passive version that is grammatically correct and carries the same sense.

Given Data / Assumptions:

The active sentence is in simple past tense and takes the interrogative form Did not they tell you.

The object in the active sentence is you and the main verb phrase is tell you to be here by six o clock.

In the passive, you will become the grammatical subject and told will be the past participle of tell.

The question form must be preserved, so we expect an auxiliary verb plus subject structure in the passive.

Concept / Approach:
To convert an active sentence in simple past to passive, we use was or were plus the past participle of the main verb. In a question, the auxiliary comes before the subject. Since the subject in the passive will be you, and you is plural in form, we use were. We also need to keep the negative and interrogative order not before the subject. Therefore, the passive structure becomes Were you not told to be here by six o clock, which directly corresponds to the original active question.

Step-by-Step Solution:

Verification / Alternative check:
To verify, mentally convert the passive sentence back to active. From Were you not told to be here by six o clock, we can derive the active They did not tell you to be here by six o clock. This active form matches the original in tense, meaning and negation. Also, it remains a question when we add the question mark, showing that the transformation is consistent. Any passive option that does not return naturally to this active structure should be rejected.

Why Other Options Are Wrong:

Have they not told you to be here by six o clock changes the tense to present perfect, which does not match the original simple past.

You were expected to be here by six o clock is in passive but shifts the verb from tell to expect and changes the meaning from being explicitly told to having an expectation, so it is not an exact transformation.

They expected you to be here by six o clock is in active voice, not passive, and again uses a different verb and structure, so it cannot be the required answer.

Common Pitfalls:
Students sometimes focus only on making a passive sounding sentence and forget to preserve the tense accurately. Another common error is dropping the question form and giving a statement instead, or changing the main verb to something more general like expect. Always remember that a proper voice transformation must keep tense, sense and interrogative nature (if present) all intact while systematically interchanging subject and object roles.

Final Answer:
The correct passive voice transformation of the given question is Were you not told to be here by six o clock?