Question

Which choice shows the correct use of a dash or dashes? A. The storm seems to be over—no, the sky is darkening again. B. The storm seems to be over—no, the sky is —darkening again. C. The storm seems—to be over no, the sky is darkening again. D. The storm—seems to be over—no, the sky is darkening again.

Answer 1

A
Dashes are where you would pause.
Therefor you would say, "The storm seems to be over (slight pause) (thinking, no, wait, it isn't) no, the sky is darkening again."