Question

I just don’t understand_______ that prevents so many Americans from being as happy

I just don’t understand_______ that prevents so many Americans from being as happy as one might expect.A .why it does B. what it does C. what it is D. why it is

Answer 1

该句意思是说：我就是不明白到底是什么东西阻竖雹止了这么多美国人过上快乐余纯帆生活。

“到底是什么”，这是强调句裤备的疑问形式。

Answer 2

C. what it is

这里是强调句，把it is that拿掉还是完整的句子。

Answer 3

选c没错 考强调句 it is that