Guests at this hotel can use the gym at no ______ cost.
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Are you satisfied with the ______ of your new car?
A. acting
B. performance
C. operation
There is keen ______ between the two firms.
A. competition
B. contest
C. match
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