参考答案

正确答案：D
解析：M: How many students passed the final physics exam in your class?
W: Forty, but still as many as 20 percent of the class failed. Quite disappointing, isn't it?
Q:What does the woman think of the exam?
分析选项可知，对话可能与考试(It)有关。男士说“你们班有多少学生通过物理期末考试?”女士回答说“40的个，但是仍有20%的学生没有通过，很令人失望”，由此可见女士很不满意考试结果，故选[D]。