The how to book can be of help to wants to do the job.A. whoB. whomeverC. no matter whoD.

问题补充：

The how to book can be of help to wants to do the job.

A. who

B. whomever

C. no matter who

D. whoever

答案：

A. who

B. whomever

C. no matter who

(答案→)D. whoever

解析：考查名词性从句。此处从做介词to的宾语，是名词性从句，引导词做从句的主语，指人，意思是：无论是谁，选D。