The Eiffel Tower _______ was completed in 1889 _______ remains one of the most visited landmarks in the world.
5
readingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
which was completed in 1889
B
, which was completed in 1889
C
, which was completed in 1889,
D
—which was completed in 1889
Correct Answer: C
Choice C is the best answer. This question tests comma usage with nonessential clauses.
- Context clues: There's only one Eiffel Tower, so the clause is nonessential (adds info but doesn't identify).
- Meaning: Nonessential clauses are set off by commas on both sides.
- Verify: "The Eiffel Tower, which was completed in 1889, remains..." correctly adds extra information.
💡 Strategy: When the subject is unique (proper noun), use ", which" with commas for additional information.
Choice A is incorrect because it lacks both commas. Choice B is incorrect because it lacks the closing comma. Choice D is incorrect because a single dash creates asymmetry.