Sentence 17

Directions: Read the sentence below. Then choose the option that maintains parallel structure.

You might want to consult the rules before you make your choice!

Laura and Diane bang on Boen's door when they need heavy furniture moved, after they have clogged the garbage disposal, and __________.
  1. having discovered a spider in the bathtub
  2. upon the discovery of a spider in the bathtub
  3. if they find a spider in the bathtub
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