---Many young people in the West are expected to leave______could be life' s most important decision
--- marriage
---almost entirely up to luck.
A.as
B.that
C.which
D.what
网友回答
D解析句中此处是一个名词性宾语从句，leave 是动词，后面要加宾语。其中that 和which 引导宾语从句的话，要有先行词在连接词的前面。所以应该选D