advice I give him he always behaves in his own way. I simply can’t do anything with him.

问题补充：

advice I give him, he always behaves in his own way. I simply can’t do anything with him.

A. How

B. Whatever

C. However

D. No matter

答案：

A. How

B. Whatever

(答案→)C. However

D. No matter

解析：考察连词。A. 怎样 B. 无论什么 C. 无论怎样 D. 不论怎样，后面接从句，不能接名词或名词性短语。句意：无论我 给他什么建议，他只是按自己的方式来。……故选C。