— bargaining is always such great fun?
—Usually people consider it a test to see who can stand their ground longer.
A. What is it that
B. Why is it that
C. What it is that
D. Why it is that
网友回答
A. What is it that
(答案→)B. Why is it that
C. What it is that
D. Why it is that
解析：
试题分析:句意：——为什么讨价还价总是如此有趣呢？——通常人们认为这是一个考验，能看看谁能更长时间地坚持自己的立场。此处是强调句型的特殊问句，应该用疑问句语序，排除CD选项，而句中主系表结构完整，故用疑问副词，答案选B。