In this English grammar question, a sentence is given in active voice. Select the option that best expresses the same idea in passive voice. Sentence: "You have to take these medicines."

Introduction / Context:

This question deals with a sentence that expresses obligation using "have to". The original sentence tells someone that they must take certain medicines. The task is to find a passive voice sentence that keeps the sense of necessity and still clearly refers to the same action.

Given Data / Assumptions:

- Original sentence: "You have to take these medicines."

- Subject in the active sentence: "you".

- Object: "these medicines".

- The structure "have to take" expresses a requirement or duty.

- The passive sentence must express that the medicines are required to be taken by the same person.

Concept / Approach:

To change a sentence with obligation into passive voice, we usually move the object to the subject position and use a passive form of the modal structure, such as "have to be taken". The original subject can remain in a "by" phrase. The sense of obligation should stay as strong as in the original, and we must avoid turning the sentence into a description of what is happening right now instead of a requirement.

Step-by-Step Solution:
Step 1: Identify subject, verb, and object. Subject: you. Verb phrase: have to take. Object: these medicines. Step 2: Move "these medicines" into the subject position for the passive sentence. Step 3: Transform "have to take" into "have to be taken". Step 4: Add the phrase "by you" to show who has the duty to use the medicines. Step 5: Check that the resulting sentence still expresses an obligation and not a description of an ongoing action.

Verification / Alternative check:

The sentence "These medicines have to be taken by you." clearly expresses that taking the medicines is required. It keeps the idea of obligation through "have to be taken", uses passive voice with the medicines as subject, and mentions the person responsible. The meaning is therefore equivalent to the active original.

Why Other Options Are Wrong:

Some options shift the focus to an ongoing process with forms like "are being taken", which describes what is happening rather than what must happen. Other choices contain confusing or incorrect grammar, describing you as being taken by the medicines, which is the opposite of what the sentence should mean. Heavy noun phrases such as "taking of these medicines has been done" sound unnatural and also change the time reference. As a result, they do not match the required passive of an obligation statement.

Common Pitfalls:

One common error is to forget the "be" in passive structures and write forms like "have to taken". Another frequent problem is losing the idea of necessity when changing to passive voice, so the sentence no longer sounds like a rule or instruction. Learners also sometimes misinterpret object and subject roles, leading to impossible meanings. Careful attention to the pattern "have to be past participle" helps preserve both grammar and meaning.

Final Answer:

The correct passive voice sentence is "These medicines have to be taken by you."