The actress who had been thought highly of to be a great disappointment.
A. turned down
B. turning in
C. turned out
D. turning up
网友回答
A. turned down
B. turning in
(答案→)C. turned out
D. turning up
解析：被高度赞誉的女演员结果非常令人失望。turn down调低；turn in交还，放弃(某物)，完成(表演等)；turn out出席，(to be sb./sth.)证明是某人/某物；turn up露面，(股市等)上扬，(失去后)被发现。该句所填部分为谓语动词，前面是who引导的定语从句。