do did does doing 的区别

do did does doing 的区别 1.仿照例子,写出动词的形式.Model：do doing does did （1）be do does did的用法 do,does,did的用法, do did does done doing这几个都是单词吗 did do does doing done哪两个是非谓语动词. do does did的用法do does did的用法do does did的用法do does did的用法do does did的用法 do did does done doing这几个都是由do变化的那这里哪一个不是动词doing done究竟是动词还是不是动词吖 do,doing,does的用法和区别, Does she often______housework?A.doing B.do C.does D.did Did it take you two hours___your homework yesterdayA.did B.doing C.to do D.does Did she_______housework his morning?A.doing B.do C.does D.did do does did will的区别 DO,DID,DOES怎么用的啊 Do,Did,Does造句! do,does,did 英语动词原形过去式现在进行时三单如：do does did doing越多越好,列成表3q I helped him _____ his homework.A.doing B.do C.did D.does