Remember that a dash is used to show an abrupt break or change in thought or to set off a summary statement or an interrupting idea. An ellipsis is used to show an incomplete thought trailing off, a longer-than-usual pause in speech, or hesitation in speech. In each item, identify the change needed, if any, so that the sentence uses punctuation correctly. If a sentence is correct as is, choose "No changes are needed." Select "Check Answers" to see how well you did.