5、.whatever【解析】Cwhoever既作了 to 的宾语,又作isinchargeofInternationalSalesplease?的主语。“whoever”作代词,/anypersonwho/thepersonwho/“任何人”、“无论谁”、“……的人”。8.(09陕西)Thehowtobookcanbeofhelptowantstodothejob.A.whoB.whomeverC.nomatterwhoD.whoever【解析】D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。9.(09海南)O