Quotation Marks and Punctuation: Commas and periods always go inside the closing quotation mark in Standard American English form. All other forms of punctuation not actually part of the quoted material go outside the closing quotation mark.
I found the passage, "Always do right!"
Please review Exhibit "A."
I don't agree with "computers are useless"; however, this could be the case.
"Witty," "clever," "amusing," and "hilarious" are her favorite adjectives.