This book can be of help to wants to do the job.A. whoB. whoeverC. no matter whoD. whomev

问题补充：

This book can be of help to wants to do the job.

A. who

B. whoever

C. no matter who

D. whomever

答案：

A. who

(答案→)B. whoever

C. no matter who

D. whomever

解析：whoever 引导名词性从句作介词宾语，而no matter who 只能引导让步状语从句。