Choose the correct passive voice: "The scientists are conducting an experiment."
Difficulty: Medium
About this MCQ
This Medium Active and Passive Voice question asks: Choose the correct passive voice: "The scientists are conducting an experiment." The correct choice is A. An experiment is being conducted by the scientists.. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Active and Passive Voice items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Active and Passive Voice so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Active and Passive Voice item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. An experiment is being conducted by the scientists. ✓
- B. An experiment has been conducted by the scientists.
Why not B: “An experiment has been conducted by the scientists.” does not fit this question. The answer is An experiment is being conducted by the scientists..
- C. An experiment was being conducted by the scientists.
Why not C: “An experiment was being conducted by the scientists.” does not fit this question. The answer is An experiment is being conducted by the scientists..
- D. An experiment is conducted by the scientists.
Why not D: “An experiment is conducted by the scientists.” does not fit this question. The answer is An experiment is being conducted by the scientists..
Correct answer
A. An experiment is being conducted by the scientists.
Explanation
An experiment is being conducted by the scientists. (option A) is the accepted answer to “Choose the correct passive voice: "The scientists are conducting an experiment."”. Option B (An experiment has been conducted by the scientists.) does not fit this question. Option C (An experiment was being conducted by the scientists.) does not fit this question. Option D (An experiment is conducted by the scientists.) does not fit this question. For this Active and Passive Voice question, the accepted answer is An experiment is being conducted by the scientists..
Source: Active and Passive Voice Official FPSC/NTS/PPSC-Style Reference Guide
Tags: FPSC, PPSC, grammar, voice, sentence structure, NTS
Submitted by: MCQsHub Editorial
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