Question

You are making a noise in the class changed possive voice​

Answer 1

Answer:

A noise is being made by you in the class.

Answer 2

Answer:

A noise is being made in the class by you.

Explanation:

The sentence is in present continuous tense in active voice.So, in passive 'making' will be 'being made'. The subject in the sentence in active voice is 'You' & object is 'a noise' which will be interchanged in passive voice.And, 'in the class' is extension.'A noise' is singular so it will take auxiliary verb 'is' in passive voice. So, the sentence in passive voice becomes-

You            are      making      a noise    in the class.   (Active)

Subject     Aux.     Principal     Object     Extension

                 verb      verb+ing              

⇒ A noise        is       being    made       in the class    by     you.   (Passive)

     Subject     Aux.                   verb           Extension             Object

                       verb                   (p.p

                                                 form)