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Answer: DSet 5: Words in Context (Intermediate)
Explanation
PASSAGE
The virus mutated _____ quickly, making vaccine development challenging.
Which choice completes the text with the most logical and precise word or phrase?
A. barely
B. slowly
C. predictably
D. exceptionally✓ Correct
Detailed Answer Explanation
Choice D is the best answer. "Exceptionally" is correct because it means "to an unusual degree." The context clues in the passage indicate that this meaning best completes the sentence logically.
Why others are wrong: A ("Barely" means "only just," which doesn't fit the context.), B ("Slowly" means "not quickly," which doesn't fit the context.), C ("Predictably" means "as expected," which doesn't fit the context.).
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