SAT Sentence Completion Practice Question 299: Answer and Explanation

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Question: 299

5. Nicknamed the "contact lens", the device installed on the Hubble telescopes successfully -------- its flawed vision, the result of a faulty mirror.

A. corrected
B. displayed
C. generated
D. scrutinized
E. accentuated

Correct Answer: A

Explanation:

Explanation for Correct Answer A :

Choice (A) is correct. "Corrected" means amended or fixed. If one were to insert this term into the text, the sentence would read "Nicknamed the 'contact lens,' the device installed on the Hubble telescope successfully corrected its flawed vision, the result of a faulty mirror." The nickname of the device on the telescope suggests that the device performs the same function as a contact lens, which is to repair "flawed," or imperfect, vision.

Explanation for Incorrect Answer B :

Choice (B) is incorrect. "Displayed" means exhibited. If one were to insert this term into the text, the sentence would read "Nicknamed the 'contact lens,' the device installed on the Hubble telescope successfully displayed its flawed vision, the result of a faulty mirror." A contact lens corrects "flawed vision." It would be illogical to nickname a telescopic device the "contact lens" if it only displays imperfect vision.

Explanation for Incorrect Answer C :

Choice (C) is incorrect. "Generated" means produced. If one were to insert this term into the text, the sentence would read "Nicknamed the 'contact lens,' the device installed on the Hubble telescope successfully generated its flawed vision, the result of a faulty mirror." A telescopic device that actually "generates," or causes, flawed vision has the opposite effect of a "contact lens."

Explanation for Incorrect Answer D :

Choice (D) is incorrect. "Scrutinized" means inspected. If one were to insert this term into the text, the sentence would read "Nicknamed the 'contact lens,' the device installed on the Hubble telescope successfully scrutinized its flawed vision, the result of a faulty mirror." A device that helps scientists to inspect a flawed telescope may exist, but there would be little reason to nickname it the "contact lens."

Explanation for Incorrect Answer E :

Choice (E) is incorrect. "Accentuated" means emphasized. If one were to insert this term into the text, the sentence would read "Nicknamed the 'contact lens,' the device installed on the Hubble telescope successfully accentuated its flawed vision, the result of a faulty mirror." It is unlikely that scientists would create a device that exaggerates a telescope's flaws.

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