The performance supposed to be popular to be a great disappointment after it was over.
A. turned up
B. turned down
C. turned out
D. turned over
网友回答
A. turned up
B. turned down
(答案→)C. turned out
D. turned over
解析：考查动词词组：A. turned up出现，露面，B. turned down拒绝，调低，C. turned out结果是， D. turned over翻转，句意是：被认为会受欢迎的表演结果结束后很让人失望。选C。