此处应填写whomever,因为放在介词with后.
whoever ,whomever引导名词性从句时,也属连接代词范畴,其中 whoever在句中可作主语、宾语或表语,本身有意义；whomever在句中只能作宾语,本身也有意义,相当于anyone whom.从形式上来看,who(ever)是人称代词的主格形式,一般在句子中作主语；
whom(ever)是人称代词的宾格形式,故一般作宾语.一般说来,whomever不能做句子的主语.
whoever=人称宾格+人称主格
whomever= 人称宾格+人称宾格
验证一下1.Give it to _____ asks for it first.
Give it to him.He asks for it first.
Give it to whoever asks for it first.(whoever= him+ he)
2.We will hire_______ is most qualified.
We will hire her.She is most qualified.
We will hire whoever is most qualified.(whoever= her+ she)
3.We will hire_____ you recommend.
We will hire them.You recommend them.
Therefore,We will hire whomever you recommend.( whomever= them + them)