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All these answers are correct. n contemporary American English, -. double quotation marks signal a quotation taken verbatim, or word for word, from a source., single quotation marks signal a quotation within a quotation., . indirect quotations do not require the use of either single or double quotation marks, but may require a reference in academic or professional contexts.
Added 7/6/2023 11:46:09 AM
This answer has been confirmed as correct and helpful.
