Listen to the song and write the missing words in the gaps

Six little _______ that I once knew,

Fat ones, skinny ones, fair ones too,

But the one ______ duck with the feather on his back,

He led the others with a ______, quack, quack !

Quack, ________, quack, quack, quack, quack !

He _____ the others  with a quack, quack, quack !