Rewrite the following sentence by changing the voice (Active or Passive):
He teaches us grammar.
The correct option is
D
We are taught grammar by him.
An action in a sentence can be represented in two ways, namely active and passive voice.
The passive voice always uses the past participle form of the main verb irrespective of any tense. Only the auxiliary verbs remain unchanged.
The correct answer is D) We are taught grammar by him.
Option D is correct as the given sentence is in the active voice and to transform it into the passive voice the subject of the given sentence (He) comes in the place of the object (To whom does he teach grammar? (we-indicated by 'us') and vice versa. Also, as the sentence is in the simple present tense.
Options A, B, and C are not correct as in those sentences the tense has been changed.