15.
M: Hello, this is Jack Richards. I'm calling to see whether my glasses have been fixed yet. I sent them to you last Wednesday.
W: Hi, Mr. Richards. We have to order a part for your glasses, so the earliest they could be with you is Friday.
Q: What does the woman mean?
正确答案：C
解析：男士打电话问眼镜修好了没有，女士说已经订购了修理部件，男士最早可以周五来取眼镜，故选C。

16. M: I was going to ask Sandy to help me with these lab reports, but she seems to be always engaged. I just don't know why.
W: Oh, that's because she is always on the Internet, chatting with her friends. Why don't you come with me and see if Lisa is available?
Q: What does the woman imply?
正确答案：C
解析：男士说本来想找Sandy帮助自己写实验报告，但她好像总是没空，女士说因为Sandy总在网上聊天，建议男士看看Lisa是否有空，故选C。