Set 8: Form, Structure & Sense (Intermediate)
Explanation
PASSAGE
The telescope's sensitivity, enhanced through recent upgrades to its optical _______ now allows astronomers to detect exoplanets previously beyond the instrument's capabilities.
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 phrase 'enhanced through recent upgrades to its optical systems' is parenthetical. A comma closes this phrase before 'now allows.' 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 telescope's sensitivity, enhanced through recent upgrades"
• "now allows astronomers"
Why others are wrong: B (A colon doesn't fit for closing a participial phrase.), C (A semicolon is too strong for closing a participial phrase.), A (Missing punctuation fails to close the parenthetical phrase.).
🎯 Keep Practicing!
Master all sections for your best SAT score