Question

change active to passive voice
1 she does not feed

Answer 1

Well let us identify the subjects and objects of this sentence first.
Subject: She
Object: No object

Yes, there are no objects in this sentence so we cannot convert or transform or change it to passive voice.
Whenever we convert from active voice to passive voice then always there must be atleast one subject and one object.
Since, here in this sentence there is not even one object, it's passive form cannot be made.

Even if you want to write it's passive form then you may copy the down the same sentence as the passive form or passive voice.