Obviously, he’s very disappointed at the way things have .
A. turned up
B. turned out
C. turned on
D. turned down
网友回答
A. turned up
(答案→)B. turned out
C. turned on
D. turned down
解析：：本题考查turn out的义项：1）作系动词，“结果证明是”，后接形容词、名词、不定式和从句；2）作及物动词，等于produce生产；3）以某种方式发生。
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