Which type of punctuation signals the reader that words from the direct quote have been changed by the writer

Which sources would be most appropriate for an essay that focuses on how technology has affected the development of english? check all that apply. an anthology of old and middle english literature u "colonialism and the influence of french on english" the effects of the printing press on language "how computers are changing the way we speak, write, and think" influential writers of the eighteenth century "lol: the influence of text messaging on spoken english"

If one writes logically, he will prove his point. is this sentence correct or contains an unwarranted shift in person?

My friends asked me, “are you not coming for the party? "change into passive voice