Some of us fail to learn that pain is the body’s way of informing the mind we are doing s

问题补充：

Some of us fail to learn that pain is the body’s way of informing the mind we are doing something wrong, not necessarily something is wrong.

A. that, what

B. that, that

C. what, that

D. what, what

答案：

A. that, what

B. that, that

C. what, that

D. what, what

解析：考查名词性从句。第一空的that引导宾语从句作为动词inform的宾语，第二空也是引导宾语从句作为动词doing的宾语。句意：一些人没有认识到疼痛是身体告诉我们，我们在做一些不必要的事和错事。故B正确。