Question

(change the voice) call the doctor once​.

Answer 1

Answer:

passive and active

Explanation:

There are two voices of verbs, passive and active. Verb is said to be in passive voice when the subject of the sentence is acted upon by the verb. It always starts with subject and must have a 'by'. Here in the sentence- Call in the doctor at once.

Answer 2

Answer:

Passive voice:

Let the doctor be called once.

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