Wow, you are in high spirits. makes you so happy?
A. What it is that
B. What is it that
C. What is that
D. What it that
网友回答
A. What it is that
(答案→)B. What is it that
C. What is that
D. What it that
解析：考查强调句的特殊疑问句：句意：喔，你情绪高涨。是什么使你如此高兴？强调句的特殊问句的结构是：疑问词+is/was+that+其余部分，符合这个结构的是B。