问题
选择题
I can’t understand _______ Apple’s iPad 2.
A. why are they so mad about. B. why they are 80 Bad about
C. how are they so mad about D, how they are 80 mad about
答案
答案：B
考查宾语从句的用法。 宾语从句要用陈述语序，所以首先排除A和C；句意为“我不能明白为什么Apple’s iPad 2.是如此的疯狂。故选B。