问题补充:
I looked for my pen for a long time last night,but it in my pocket this morning.How strange!
A. turned out
B. turned on
C. turned up
D. turned down
答案:
A. turned out
B. turned on
(答案→)C. turned up
D. turned down
解析:此题考查短语辨析。turn up“出现,露面”,和句意相符。