Sentence 2

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!

Stuart wiggled his foot, drummed the desk with his pencil, and __________, but he could not burn off the caffeine-induced energy from an extra-large cup of coffee.
  1. chewed a mouthful of gum
  2. was chewing a mouthful of gum
  3. his jaw worked a mouthful of gum