The sentences both changed and unchanged are written below:
Quotation marks (" ") are known to be a form of punctuation marks that are used in pairs in writing in order to identify direct speech, a phrase or a quotation. It consists of an opening quotation mark and a closing quotation mark.
We can see that the use of quotation marks above actually show the specific word being referred to.
Learn more about quotation marks on https://brainly.com/question/2762082