In American English, a period is not added at the end of a sentence if it ends with a quote whose last letter is a quotation mark or an exclamation point.
Edema asked, “Am I an alliteration addict?”
Should the period at the end of the quote be added, if the sentence ends with a question mark or an exclamation point? Is the following sentence correct?
Did Edema said, “I am an alliteration addict.”?
In this case you remove the punctuation from the quote, so the period would go away and the question mark would remain. (Also note it should read Did Edema say, not Did Edema said.)
So the corrected version of the sentence would be:
Did Edema say “I am an alliteration addict”?
Source : Link , Question Author : apaderno , Answer Author : WendiKidd