9
Answer: BSet 3: Words in Context (Intermediate)
Explanation
PASSAGE
The alliance was ______, formed quickly to address the immediate threat of invasion but dissolved almost as soon as the war ended.
Which choice completes the text with the most logical and precise word or phrase?
A. permanent
B. transient✓ Correct
C. unnecessary
D. informal
Detailed Explanation
Something that lasts only a short time is 'transient' or temporary. The alliance dissolved quickly.
Key Evidence:
• "dissolved almost as soon"
• "formed quickly"
Why others are wrong: A (Permanent means lasting forever.), C (It was formed to address a threat, so it wasn't unnecessary.), D (Informal means casual, but strict alliances can be short-lived too.).