The CEO _______ once skeptical of the new technology _______ has become its most vocal advocate.

10
reading

Which choice completes the text so that it conforms to the conventions of Standard English?

A

, once skeptical of the new technology,

B

once skeptical of the new technology

C

—once skeptical of the new technology,

D

—once skeptical of the new technology—

Correct Answer: D

Choice D is the best answer. This question tests dash usage for emphatic parenthetical information.

  1. Context clues: The phrase emphasizes the contrast in the CEO's position.
  2. Meaning: Dashes must be used in pairs for mid-sentence interruptions.
  3. Verify: "The CEO—once skeptical of the new technology—has become its most vocal advocate" emphasizes the transformation.

💡 Strategy: Use matching dashes for emphatic parenthetical information.

Choice A is incorrect because commas work but provide less emphasis. Choice B is incorrect because punctuation is needed. Choice C is incorrect because dashes must be paired.

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Set 13: Boundaries 13