Set 4: Form, Structure & Sense
Explanation
PASSAGE
Intriguingly, 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
[Variation 2] 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: A (A semicolon separates independent clauses; 'relying on...' is a phrase.), C (A colon introduces lists or explanations, not participial phrases.), D (Without punctuation, the sentence runs together incorrectly.).