The main change is in the UK alphabet, the letter “Z” is pronounced “Zed”, when in the United States, “Z” is pronounced “Zee”, Consequently the final verse rhymes in a different way.
Our common “ABC https://honeyfvge540558.oneworldwiki.com/6190825/how_much_you_need_to_expect_you_ll_pay_for_a_good_kids_song_abc