In the following question on voice change, a sentence is given in the active voice; out of the four alternatives, select the passive voice form that best expresses the same meaning: "The event manager is making all the reservations."

Introduction / Context:
This question tests your understanding of changing a sentence from the active voice to the passive voice while preserving the tense and meaning. The original sentence is "The event manager is making all the reservations." We need to recognise the tense, identify the object and subject, and then convert the structure correctly to form an accurate passive construction.

Given Data / Assumptions:

• Active sentence: "The event manager is making all the reservations."
• Subject: "The event manager".
• Object: "all the reservations".
• Tense: present continuous (is making).
• We must keep the time reference and meaning unchanged.

Concept / Approach:
In English, the present continuous tense in the active voice has the pattern: subject + is/am/are + present participle (verb + ing) + object. To convert this into the passive voice, the object becomes the new subject, the auxiliary verb changes to the appropriate form of "to be" plus "being", and the main verb changes to the past participle form. The agent (the original subject) is then introduced by the preposition "by".

Step-by-Step Solution:
Step 1: Identify the verb phrase "is making" as present continuous. Step 2: Identify "all the reservations" as the object that will become the new subject in the passive form. Step 3: In passive, present continuous becomes "is being" or "are being" plus past participle, depending on whether the new subject is singular or plural. Step 4: "All the reservations" is plural, so we use "are being made". Step 5: Attach the agent phrase "by the event manager" to show who is doing the action. Step 6: The final passive sentence is "All the reservations are being made by the event manager."

Verification / Alternative check:
To verify, convert the passive option back into active voice. "All the reservations are being made by the event manager" becomes "The event manager is making all the reservations." This matches the original sentence perfectly in both tense and meaning. None of the other options preserve the present continuous sense of an action that is happening now.

Why Other Options Are Wrong:
Option a: "would be made" changes the tense to a conditional or future-in-the-past sense, which is not present continuous. Option c: "would have been made" suggests a hypothetical completed action in the past, which is not implied in the original sentence. Option d: "will have been made" refers to future perfect, suggesting completion by a future time, again not matching the ongoing action of "is making".

Common Pitfalls:
Learners often ignore the tense and simply choose any passive structure that sounds formal. Another common error is using "is made" instead of "is being made" for present continuous, which changes the meaning to a general fact rather than an action in progress. Always match both the time reference and the aspect (continuous, simple, perfect) when changing voice.

Final Answer:
The correct passive form is All the reservations are being made by the event manager.