Sometimes I bring a bean bag and we will pass it around while we sing.
The one holding the bean bag when the pianist stops playing must say the next line.
Junior loves to pass the bean bag quickly so they don't
get stuck with it.
They also have to pay attention to the song so they could say the next line.
It is also a lot of repetition for the nonreaders.
Just one idea. Juniors also love actions to learn a song.
If there can be actions at all, I try that.