Change the following from active to passive: The teacher has explained the concept clearly.

The concept was clearly explained by the teacher.
The concept had been clearly explained by the teacher.
The concept has been clearly explained by the teacher.
The concept is being clearly explained by the teacher.

Correct answer: The concept has been clearly explained by the teacher.

Solution

The sentence is in present perfect active voice: "has explained." In passive voice, the object "the concept" becomes the subject and the tense changes to "has been explained."

Related SSC CGL (Prelims) General questions

Change the following from active to passive: Will the committee review the amended policy immediately?
Convert the sentence from passive to active voice: The citizens were warned about the cyclone by the authorities.
Change the following from active to passive: The committee might have revised the regulatory framework during the session.
Convert the following passive voice sentence into active voice: Was the final agreement signed by both parties after prolonged negotiations?
Change the following from active to passive: They will have inaugurated the metro line by next year.
Identify the sentence from the passage that is in the passive voice: Read the passage given below and answer the questions that follow: The metamorphosis of a moth exemplifies one of nature's most intricate and fascinating biological transitions. The life cycle commences with the deposition of delicate eggs, typically concealed along the veins of leaves, ensuring immediate sustenance once they hatch. Upon emergence, the larva — or caterpillar — enters a stage of persistent consumption, voraciously feeding on plant matter to accelerate its growth. Throughout this period, it experiences successive molts, discarding its inflexible exoskeleton to accommodate its enlarging structure. This intense feeding phase is indispensable for accumulating the energy necessary for the forthcoming metamorphosis. The progression into the pupal stage, enclosed within a chrysalis, represents an extraordinary biological transformation. Within this enclosure, the caterpillar’s tissues are methodically dismantled and reorganized into entirely new anatomical structures; wings, antennae, and compound eyes develop through a refined mechanism termed histogenesis. After this concealed reconstruction concludes, the adult moth emerges, its fragile wings requiring expansion with hemolymph and sufficient drying before flight can occur. Once airborne, the moth’s existence is primarily devoted to reproduction, thereby ensuring the continuation of the species before its ephemeral lifespan ends. Although frequently idealized, the moth’s life cycle illustrates a demanding narrative of adaptation, endurance, and evolutionary precision, providing profound insight into ecological equilibrium.

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →