Question

change the voice. her friends have not laughed at her.

Answer 1

Here is ur answer:-
She has not been laughed at, by her friends.

Answer 2

Heyaa..

Lets change the sentence from Active voice to Passive voice..

Her friends have not laughed at her - Active Voice

She has not been laughed at by her friends - Passive voice

# The sentence have been formed as : $Has \ / \ Have \ + \ been \ + \ V _{3} \ form$

Hope it helps..

If you have any doubts..Please just clarify with me..I'm ready any time to make u clear..

And here CutieBarbie :)