Take another look at the original sentence:

Fighting the urge to crawl under her desk, Adriana looked at the clock, there was still a half hour left of class, more than enough time to do her poorly prepared, ten-minute speech.

You wanted to fix it this way:

Fighting the urge to crawl under her desk, Adriana looked at the clock there was still a half hour left of class, more than enough time to do her poorly prepared, ten-minute speech.

To delete the comma between clock and there would cause an equally bad problem, a fused sentence. A fused sentence occurs when you have two main clauses joined with no punctuation whatsoever. Adriana looked at the clock is the first main clause. There was still a half hour left of class is the second main clause. The spot between clock and there needs a stronger break than blank space.

You might want to consult the rules for fixing comma splices and fused sentences.

Go back to the sentence to try again.

HomeTermsExercises MOOCHandoutsPresentationsVideosRulesAboutShopFeedback