Question

Voice change of - I didn't know anyone else was here.

Answer 1

Anyone else was here was not known to me.

• English has two grammatical voices: active and passive. Although one is better suited to specific kinds of writing, neither is fundamentally superior to the other. News anchors frequently use the passive voice, which makes them look disinterested in the stories they are reporting. The fact that opinion piece writers typically use the active voice and sound so confident in their opinions is another factor.
• The passive voice has applications, despite the fact that teachers typically advise their pupils to avoid using it (to the point where it feels like a stereotype).

Here, the sentence is given as,

I didn't know anyone else was here.

This is in active voice format.

The passive voice format will be,

Anyone else was here was not known to me.

Hence, the correct passive voice form is, Anyone else was here was not known to me.

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