_______ the artist spent over a decade perfecting her technique before unveiling her work to the public.
6
readingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
Working in complete isolation
B
Working, in complete isolation
C
Working in complete isolation,
D
Working in complete isolation:
Correct Answer: C
Choice C is the best answer. This question tests comma usage after introductory phrases.
- Context clues: A participial phrase introduces the main clause.
- Meaning: Use a comma after an introductory phrase before the main clause.
- Verify: "Working in complete isolation, the artist spent..." correctly separates the introduction from the main clause.
💡 Strategy: Use a comma after an introductory participial or prepositional phrase.
Choice A is incorrect because it lacks the required comma. Choice B is incorrect because the comma interrupts the phrase incorrectly. Choice D is incorrect because a colon cannot introduce a complete sentence this way.