is expected according to the online survey is that house prices will not go up any more.

问题补充：

is expected, according to the online survey, is that house prices will not go up any more.

A. As

BIt

CWhich

DWhat

答案：

A. As

B. It

C. Which

(答案→)D. What

解析：考查名词性从句。本题的what is expected是一个主语从句，在句中做主语。It是形式主语；as引导非限制性定语从句。句意：根据一项网络调查，人们希望的事情是房价不要再上涨了。