I don’t know makes her afraid of having her business discussed.
A. what it is about Mary that
B. that is it abut Mary what
C. what is it about Mary that
D. that is about Mary what
网友回答
(答案→)A. what it is about Mary that
B. that is it abut Mary what
C. what is it about Mary that
D. that is about Mary what
解析：在通常情况下，强调结构的特殊疑问句形式为“疑问词+is it that…?”，但此题强调的是宾语从句，其语序与陈述句相同，所以是what it is…that…