请说一下whatever whenever however whichever的用法及意思.还有为什么有些句子中一定用whenever而不用when呢?

请说一下whatever whenever however whichever的用法及意思.还有为什么有些句子中一定用whenever而不用when呢? 请说一下思路 请说一下理由. He has done _________ he can to help me.是填what还是whatever?或者说两者都可以?请分析一下原因.谢可是为何我老师说只能填what...sorry,上次打错了。 分析一下whatever与no matter what的不同点和用法以及特点.请举例说明 分析一下whatever与no matter what的不同点和用法.请举例说明 no matter what和whatever用法有什么区别请说明一下并且最好写几句列句. The lawyer rarely wears anything other than jeans and a T-shirt [whatever]the season.为什么用whatever 啊?请帮我详细分析一下呗~~~谢谢啦~ 请高手分析一下这句话的句子结构和成分Whatever is worth doing is worth doing well. Whatever whatever whatever Do whatever the committee asks him to do.请教英语大神给翻译一下这句话的意思,把句型语法也给说一下, 学名词性从句,晕死了~在连接词：连接代词和连接副词,如what.that等词分别做什么成分?连接代词（9个）：what,whatever,who,whoever,whom,whomever,whose,which,whichever 连接副词（7个）：when,where,how,why,wheneve 状语从句____we gave him something to eat,he would save it up for his little sister____we gave him something to eat,he would save it up for his little sisterA whatever.B however.C.Wheneve r.D.Whichever.为什么不能选A呢? 歌词中有wherever you go whatever you do I'll give you my heart,很好听的男声是在一个手机铃声下载网站上听到的,找好久也没找到名字,知道的请跟我说一下,我的财富值总共就才50分,一大半都给你,如果 英语翻译请说一下愚公的精神 请说一下过山车的原理.