Here is the item again:

Citing writer's block as the reason (A) that she didn't have her essay, (B) Yao received no sympathy from Mrs. Santos. (C) Who will only accept "breather's block" as a legitimate excuse for late work.

You correctly realized that the period after Mrs. Santos creates a fragment. Who will only accept "breather's block" ... is a subordinate clause, so it cannot stand alone as a complete sentence.

To fix this fragment, you chose to do this:

Citing writer's block as the reason that she didn't have her essay, Yao received no sympathy from Mrs. Santos, who will only accept "breather's block" as a legitimate excuse for late work.

To fix a subordinate clause fragment, you usually use Punctuation Rule 1:

Main Clause + Ø + Subordinate Clause.

Who, a relative pronoun, is a special case. Because Mrs. Santos is a specific noun, you will need a comma to connect the two parts. Check out Comma Tip 5 for additional information.

Rock on!

Go to the next sentence.

HomeTermsExercises MOOCHandoutsPresentationsVideosRulesAboutShopFeedback