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Zorluk: ZorRun-on Sentences and Comma Splices

The following passage is an excerpt from a history of early photography.

In the early nineteenth century, Louis Daguerre developed a revolutionary photographic process that captured images on silver-plated copper sheets. This technique required long exposure times and toxic chemical vapors. Consequently, early sitters had to remain perfectly still for minutes on end, moreover, many portraitists suffered chronic health problems from mercury exposure. Modern curators now handle these fragile plates with extreme care to prevent tarnishing.

Which choice best corrects the underlined portion of the sentence?

  1. A
    NO CHANGE
  2. end; moreover, manyCevap
  3. C
    end; moreover, because many
  4. D
    end. Moreover, many portraitists who

Cevap

end; moreover, many
The correct option uses a semicolon to separate two closely related independent clauses. The conjunctive adverb 'moreover' is placed immediately after the semicolon and is followed by a comma, which is the standard punctuation pattern for joining independent clauses with a transitional adverb.

Adım Adım Çözüm

1
Analyze the original sentence structure to identify the relationship between the clauses.
The sentence contains two independent clauses: 'Consequently, early sitters had to remain perfectly still for minutes on end' and 'many portraitists suffered chronic health problems from mercury exposure'.
Understanding the boundary between independent clauses is necessary to determine correct punctuation.
2
Evaluate the punctuation separating the two independent clauses in the original sentence.
The clauses are joined by a comma followed by the conjunctive adverb 'moreover'. This is a comma splice, which is grammatically incorrect.
Conjunctive adverbs like 'moreover', 'however', and 'therefore' cannot join independent clauses with only a comma.
3
Determine which punctuation choice correctly joins the two independent clauses without creating a fragment.
Using a semicolon before 'moreover' and a comma after it correctly joins the two independent clauses. Other options create fragments by introducing subordinating conjunctions or relative pronouns that leave the second clause incomplete.
A semicolon is grammatically required to separate two independent clauses when a conjunctive adverb is used to link them.

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Run-on Sentences and Comma Splices
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Run-on Sentences and Comma Splices

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