Set 8: Form, Structure & Sense
Explanation
PASSAGE
Dolphins use echolocation to navigate and find _______ relying on sound waves that bounce off objects.
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. A comma is needed before the participial phrase 'relying on sound waves.' This phrase adds information about how dolphins use echolocation. 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:
• "navigate and find _______"
• "relying on sound waves"
Why others are wrong: B (A semicolon separates independent clauses; 'relying on...' is a phrase.), C (A colon introduces lists or explanations, not participial phrases.), A (Without punctuation, the sentence runs together incorrectly.).
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