Question

voice change of everybody laughs at him​

Answer 1

Answer:

$\huge\colorbox{purple}{Question}$

voice change of everybody laughs at him.

$\huge\colorbox{purple}{Answer}$

he was laughed at (by everyone).

$\huge\colorbox{purple}{Extra\: information}$

it depends on you that you want use by everyone or not.

Answer 2

Answer:

he was laughed at.

here's your answer