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Zorluk: OrtaSubordination and Coordination

Choose the best version of the underlined portion of the sentence from the passage below:

In the 1950s, aerospace engineer Mary Golda Ross worked on top-secret designs for interplanetary travel. Although her calculations helped lay the groundwork for the Apollo program, but her identity was kept hidden from the public for decades due to security clearance protocols.

Which of the following options represents the most grammatically correct phrasing of the underlined portion?

  1. A
    NO CHANGE
  2. Her calculations helped lay the groundwork for the Apollo program, but herCevap
  3. C
    Although her calculations helped lay the groundwork for the Apollo program; her
  4. D
    Her calculations helped lay the groundwork for the Apollo program, her

Cevap

The option that reads 'Her calculations helped lay the groundwork for the Apollo program, but her' is correct because it properly links two independent clauses with a comma and a coordinating conjunction, avoiding grammatical errors like comma splices, dependent clause fragments, or double conjunctions.
The correct option removes the subordinating conjunction at the beginning of the clause, turning it into an independent clause. It then uses a comma and the coordinating conjunction 'but' to properly join this clause with the subsequent independent clause, resolving the double-conjunction error.

Adım Adım Çözüm

1
Analyze the original sentence structure to identify grammatical relationships.
The original sentence contains a subordinating conjunction ('Although') at the beginning and a coordinating conjunction ('but') in the middle. This double-conjunction structure is grammatically incorrect.
A dependent clause introduced by a subordinating conjunction cannot be joined to an independent clause using a coordinating conjunction.
2
Evaluate the choices to find a grammatically correct way to connect the clauses.
Removing 'Although' converts the first part into an independent clause: 'Her calculations helped lay the groundwork for the Apollo program.' Using a comma and 'but' before the second independent clause ('her identity was kept hidden...') correctly coordinates the two ideas.
Two independent clauses must be joined using a coordinating conjunction preceded by a comma, or by a semicolon without a conjunction.

Anahtar Kavram

Subordination and Coordination
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Konular

Subordination and Coordination

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