a ,for ,but,perhaps的词性!

a ,for ,but,perhaps的词性! 英语翻译Hard work is perhaps a necessary prerequisite for succes Perhaps people have used it for a century but for的but是什么词性?怎么记这个短语的意思?有没有好的记忆方法? 单词 beside ,besides ,expect,expect for,but的区别?词性?用法? I told Sally how to get there,but perhaps I ( ) for her. 英语语法 People travel for many reasons,but perhaps the most com I told Sally how to get here,but perhaps I ______ for her. 英语翻译Perhaps you have learned a lot about theinternet,but wha Perhaps you have heard a lot about the Internet,but ( )is it 英语翻译(D) Perhaps you have heard a lot about the Internet,but Perhaps you get worse tpday.but tomorrow will a lwas be