Set 7: Form, Structure & Sense (Intermediate)
Explanation
PASSAGE
Evidence indicates that 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
[Variation 4] 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.).