15.
W: Congratulations! You're to be appointed as Sales Manager!
M: Incredible. It's too good to be true. You must be kidding. I've only been working for two months in this department, and this is totally a huge surprise!
Q: How does the man react to the news?
正确答案：A
解析：男士用了三种不同的表达反映了同一种心情：“难以置信”。unbelievable是incredible的同义词。

16.
M: Do you know anyone who has a spare bookshelf? I just don't know where to put my newly borrowed reference materials.
W: Have you checked with Marsha?
Q: What does the woman suggest the man do?
正确答案：D
解析：通过问句Have you checked with Marsha?来提出建议。不过这个建议题难度稍大些，要求考生不但要听懂建议句，而且要抓听到原问句中的关键信息spare bookshelf“多余的书架”，否则还是有可能错选。正确选项中的extra bookshelf是原文中spare bookshelf的同义替换。