11.

　　W: Simon, could you return the tools I lent you forbuilding the bookshelf last month?

　　M: Oh, well, I hate to tell you this, but I can't seemto find them.

　　Q: What do we learn from the conversation?

　　正确答案：D

　　解析：依照规律，but后的内容是关键：“我好像找不到工具了。”D中的missing对应can't find。A、B均为干扰项；女士要求男士归还借走的工具，可知他并未还给女士，故C不正确。

　　12.

　　W: I found an expensive diamond ring in the restroom this morning.

　　M: If I were you, I would turn it in to the security office. It is behind the administrationbuilding.

　　Q: What does the man suggest the woman do?

　　正确答案：C

　　解析：本题关键在于听到If I were you... 建议句：“如果我是你的话，我会把戒指交给保安室。”turn in意思是“上交”，对应C中的hand in，故C为答案。