Question

________ is our belief that improvements in health care will lead to a stronger, more prosperous economy．

[　　]

A．

As

B．

That

C．

This

D．

It

Answer 1

答案：D
解析：

it作形式主语，真正的主语是that improvements in health care will lead to a stronger, more prosperous economy。只有it能作形式主语。