I waited for her at the bus station for two hours, but she never .
A. turned on
B. turned to
C. turned up
D. turned down
网友回答
A. turned on
B. turned to
(答案→)C. turned up
D. turned down
解析：考查短语辨析。turned on打开；turned to救助；turned up出现；turned down拒绝。句意：我在公共汽车站台等了她2小时，但她没有出现。