Question

In dialogue, ending punctuation marks should go

inside the quotation marks.

outside of the quotation marks.

wherever they feel most right.

at the beginning of the quotation.

Answer 1

punctuation marks go INSIDE the quotations. think of dialogue as sentences simply enclosed in quotations. keep the end punctuation with the sentence.

Answer 2

Inside the quotation marks.
Dialogues are complete sentences so the marks that follow the completion of a sentence lie within the quotation marks.