I take it ellipsis is used in dialogue or informal writing. I'd like to know two things. 1) Just a second . . . don't go yet. (this is an example) Space before and after ellipsis, and also space between the dots. Is this correct? 2) What if there is a question mark after ellipsis? Example: If someone asks a question. "And you are . . .?" A question mark after ellipsis would be essential. But must there be a space between the last dot and question mark? Also, what if the question goes something like this. "You must be Mr. . . .?" Must there be four dots in a row?