I try to understand ------that prevents so many people from being as happy as they exceptA.why it does B.what it doesC.what it isD.why it is能不能说一下为什么呢？
问题描述：
I try to understand ------that prevents so many people from being as happy as they except
A.why it does
B.what it does
C.what it is
D.why it is
能不能说一下为什么呢？
答
选C 其中宾语从句中的that引导的是强调句
正确语序应该是：it is what that prevents so many people from being as happy as they except
what 同时又做understand 的宾语，因此放在understand 的后面
答
D
答
答案为C,what引导的为宾语从句,后面的that又为what的定语从句.
我试着去理解到底是什么阻碍如此多的人们不能像他们预期地那样幸福.
答
A
完整后的句意为：
我努力去理解为什么它阻止如此多的人变得像他们期望的那样快乐。
prevent是动词，对应does
it does，“这样”，也就对应that prevents so many people from being as happy as they expect，有点补充说明的感觉
还有，最后一个词应是expect吧？而非except,除了