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Zorluk: OrtaCommas with Lists, Clauses, and Coordinate Adjectives

During their research expedition in the Atacama Desert, radio astronomers calibrated the sensitive, optical telescope, collected high-resolution data and mapped the spatial distribution of distant star clusters. Which choice for the underlined portion best conforms to the conventions of standard written English?

  1. A
    sensitive, optical telescope, collected high-resolution data
  2. sensitive optical telescope, collected high-resolution data,Cevap
  3. C
    sensitive optical telescope; collected high-resolution data
  4. D
    sensitive, optical telescope collected high-resolution data

Cevap

The choice stating 'sensitive optical telescope, collected high-resolution data,' is correct because it avoids placing a comma between cumulative adjectives ('sensitive optical') and uses commas appropriately to separate the three parallel verb phrases in the series.
The correct answer removes the inappropriate comma between cumulative adjectives ('sensitive optical') while correctly using commas to separate all three actions in the series: 'calibrated the sensitive optical telescope, collected high-resolution data, and mapped...'.

Adım Adım Çözüm

1
Determine whether 'sensitive' and 'optical' are coordinate or cumulative adjectives.
They are cumulative adjectives because 'optical telescope' forms a single unified noun phrase modified by 'sensitive' (testing by inserting 'and' gives 'sensitive and optical telescope', which sounds unnatural). Therefore, no comma should separate 'sensitive' and 'optical'.
Commas are only placed between coordinate adjectives, not cumulative adjectives.
2
Identify the list structure in the sentence.
The sentence features three parallel past-tense verb phrases: (1) 'calibrated...', (2) 'collected...', and (3) 'mapped...'.
Items in a series of three or more elements must be separated by commas.
3
Select the option that correctly implements both rules.
The correct option removes the comma between 'sensitive' and 'optical' and places a comma after 'telescope' and 'data,' to separate the list items properly.
This maintains parallel list structure and adheres to standard punctuation conventions for cumulative adjectives.

Anahtar Kavram

Distinguishing cumulative adjectives from coordinate adjectives and punctuating items in a series correctly.
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Konular

Commas with Lists, Clauses, and Coordinate Adjectives

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