why don,t sb do sth同意句

why don,t sb do sth同意句 why not do sth why not do sth 例如:why don't sb do sth 是七种喔快点想出几种就报上几种 why don’t sb do同义句1.____ do sth.2.____ ____ do sth.3.____ we ____ do sth.4.will ____ ____ sth.5.would you ____ ____ do sth.就这样, 为什么是let sb not do sth而不是let sb don't do sth? Why not do sth.=Why don't you do sth.=什么? why not do sth.=why don't you do sth.还等于什么 Why don't do sth和 why not do sth有什么区别? 关于Why的否行提问我最初认为是Why don't sb do sth和Why not do sth 但老师今天好像说了个Why don't do sth昨天的一个问题简直是神速,今天呢,我充满信心 don't you do sth=why not do sth造句,词组造20句子, I don't know可以说成don't know吗?在语法上正确吗?don't do sth和sb don't do sth如何区别? 有没有don't let sb do sth?有没有let sb adj? why not do sth sb放哪? why dont sb.do sth.同义句 关于let sb do sth LET SB DO STH 的否定形式是 let sb not do sth（部分否定） 或者 don't let sb do sth（完全否定）有人说let sb not do sth 用于第一人称,don't let sb do sth用于2,3人称,有人说它们没有人称变化? 22题,不是有why not to do sth why don't you do sth22题,不是有why not to do sth why don't you do sth 的句型么? make sb not do sth don't make to do sth区别 和意思的不同是什么 tell sb not to do为社么不能是 tell sb don't to do sth. 英语造句急!why not do sthwhy don't you do sth