I have no idea measures the government will take to stop the air from being further pollu

问题补充：

I have no idea measures the government will take to stop the air from being further polluted.

A. which

B. what

C. that

D. whose

答案：

A. which

(答案→)B. what

C. that

D. whose

解析：考查同位语从句：句意：“我不知道政府将会采取什么措施来阻止空气受到进一步的污染”，这是idea引导的同位语从句。这里what是一个形容词，修饰measures表示。。。的，充当定语成分。句子有缺少成分，take后面缺少宾语，而what measures就是它的宾语。选B。