【题目】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
在线课程【答案】D
【解析】
试题分析：本题考查宾语从句。从句中的could be缺乏主语，四个选项中AB两项都不能做主语，C项只能做非限制性从句的主语，此句为限制性从句，只有what能做主语，故选D