I looked for my pen for a long time last night but it in my pocket this morning. How stra

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：考查词组：A．turned out结果是B．turned on打开C．turned up出现D．turned down调低，拒绝，句意：昨晚我找了钢笔很长时间，但今天早上出现在我的口袋里。多奇怪啊。选C。