Everyone in the class is expected to ______ the discussion.
A. participate in
B. joins
C. attended
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Guests at this hotel can use the gym at no ______ cost.
A. more
B. much
C. extra
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