Question

【题目】______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.

A. Which B. What C. It D. As

Answer 1

【答案】C

【解析】考查it的用法。句意：医疗保健的进步将促进一个更强大、更繁荣的经济，这是我们的信念。that引导的是主语从句，故空格处应该用it作形式主语，代替真正的that引导的主语从句。故选C。