Question

I try to understand __________ that prevents so many Chinese from being as happy

I try to understand __________ that prevents so many Chinese from being as happy as one might expect.
A. why is it
B. what is it
C. why it is
D. what it is

Answer 1

答案D
主要测试宾语从句。强调句句式中的疑问词要提前。译文：我试着理解究竟是什么不能让如此多的中国人向人们所期望的一样快乐。