Question

She passed class9. change into passive voice

Answer 1

Answer:

Class 9 was passed by her.

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Answer 2

Answer:

class 9 had been passed by her

Explanation:

because the sentence she passed class 9 is past perfect tense in past perfect tense the the object is class 9 it comes in the position of subject after object you should use had been as helping verb because it was in past perfect tense passed is already in v3 form so there is no need to change that after v3 you should use preposition by after that you have to change subject she to her because you are changing the pronoun she to object