Question

they are singing a song change into active passive

Answer 1

a song is being sung by them

Answer 2

$\huge {\boxed {\mathfrak {Hello!}}}$

$\underline {\underline {\Huge\mathfrak {Answer ;}}}$

A song is being sung by them.

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✔️ The sentence is in present continuous tense. So we have to use 'being' while changing the sentence from active to passive.

✔️The subject 'They' becomes the object and 'a song' which is the object becomes the subject!

$<b><u >$ Hope you understand!