Set 10: Form, Structure & Sense (Intermediate)
Explanation
PASSAGE
The observatory's primary telescope, along with its array of smaller _______ enables researchers to detect distant celestial objects with unprecedented precision.
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 'along with its array of smaller instruments' is parenthetical. A comma closes this phrase before the main verb 'enables.' The subject is 'telescope' (singular), matching 'enables.' 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 observatory's primary telescope, along with"
• "enables researchers"
Why others are wrong: A (A semicolon is too strong for closing a parenthetical phrase.), B (Missing punctuation fails to close the parenthetical phrase.), D (A colon doesn't fit for closing a parenthetical phrase.).
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