Question

we refused them admission (change into passive voice)

Answer 1

In active voice, the subject in the sentence performs the action that is implied by the verb.

Passive voice sentence results in the subject that is acted on by the verb.

So, to convert the “we refused them admission” from active to passive voice is “They were refused admission by us.”

Answer 2

Passive voice:

1) They were refused admission by us.

OR

2) They were refused admission.