Have you ever wondered there are so many natural disasters across the world in 2010?
A. which it is that
B. what is it that
C. how it is that
D. why it is that
网友回答
A. which it is that
B. what is it that
C. how it is that
(答案→)D. why it is that
解析：考查强调句。本题考查强调句的疑问句形式：疑问词 + is/was +it that +从句，根据句意用疑问词why，故选D。