英语改错题 说明理由settle the question with whomever wrote the report

whomever改成whoever
1. 看来楼主对whoever和whomever的区别不太明白.
2. 简而言之：
whoever=anybody who
whomever=anybody whom
关键在于该词在后面的从句中充当句子的主语还是宾语.
3. whoever wrote the report
=anybody who wrote the report
很明显,who才可以做后面从句中wrote the report的主语,如果用whomever,则：
whomever wrote the report
=anybody whom wrote the report
whom怎么能做上述句子的主语呢?