surely 和 certainly有什么区别?

surely 和 certainly有什么区别? for certain和certainly和surelyDo you know ______that robots would like to serve human beings?A.for certain B certainly C surely for certain和certainly和surelyDo you know ______that robots would like to serve human beings?A.for certain B certainly C surely certainly、sure、surely和of course这几个词的区别?包括词性、用法还有搭配以及语境等 sure和surely有什么区别 为什么People sure change 不是People surely change certainly、of course、sure、surely用法的区别 certainly和of course有什么不同?RT 单词indeed,surely,certainly,truely,positively ,absolutely,really 确定,每个的词性?区别?用法? indeed,surely,certainly,truely这几个词在用法上的区别 He sure is.和 He surely is.含义有什么不同吗? it surely does 和he sure is 都可做副词,两者有何不同 明天中考,有一道综合阅读,问certainly的同义词,答案给的是of course或surely,但是以前我一直都觉得请求什么的回答不是应该用Sure.迷惑了.（注,划线部分是单独的句子 ,是一个人的话“ Certainly.” Certainly certainly certainly certainly sure 和surely 的区别是什么? It's （ ） that the young man will be a successful businessman A.sure B.surely C.certainly D.certain