Set 13: Form, Structure & Sense (Intermediate)
Explanation
PASSAGE
The algorithm's accuracy, though impressive in controlled laboratory _______ deteriorates significantly when applied to real-world conditions.
Which choice completes the text so that it conforms to the conventions of Standard English?
Detailed Answer Explanation
This question tests your understanding of sentence function and text organization. The concessive phrase 'though impressive in controlled laboratory settings' is parenthetical. A comma closes this phrase before the main verb 'deteriorates.' Each sentence in a well-constructed text serves a specific purpose. Consider what role this sentence plays in the argument: does it introduce, support, contrast, or conclude an idea? Understanding why an author includes specific sentences helps you grasp the overall argument. Each sentence should serve a clear purpose: introducing ideas, providing evidence, acknowledging counterarguments, or drawing conclusions. Identify the role to understand the structure.
Key Evidence:
• "The algorithm's accuracy, though impressive"
• "deteriorates significantly"
Why others are wrong: D (A colon doesn't fit for closing a concessive phrase.), A (Missing punctuation fails to close the parenthetical phrase.), C (A semicolon is too strong for closing a concessive phrase.).
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