There is keen ______ between the two firms.
A. competition
B. contest
C. match
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The ______ is performing before a large audience.
A. coach
B. orchestra
C. talent scout
That writer is a great ______ of the world peace.
A. champion
B. chairman
C. champagne
It's ______ that she was able to solve the problem so quickly.
A. amusing
B. alarming
C. amazing
Although she was frightened, she answered with a ______ voice.
A. calm
B. peace
C. worried