To set up a what should you use to set up a quote inside a quote what punctuation mark should you use

Read this sentence from the story of my life by helen keller. the most important day i remember in all my life is the one on which my teacher, anne mansfield sullivan, came to me. which element of plot does this sentence best represent?

Ineed the answer asap composition or ideas about "the day i ran away" with 500 words

Write an email to your favourite author/poet inviting him/her to attend a literature festival organised in your school