is和does的区别是什么?如：when does your brother do his homework?可不可以说成 when is your brother
问题描述：
is和does的区别是什么?如：when does your brother do his homework?可不可以说成 when is your brother
如：when does your brother do his homework?可不可以说成 when is your brother do his homework?如果可以,为什么?什么情况下不可以?如果不可以,为什么?什么情况下可以?我最多可以提高悬赏10分,只要讲明白即可
答
不可以互换is 的用法：1.是be动词,翻译成“是”；2.后面是ing形式,则表示正在进行；3.后面是动词过去式,则表示被动 dose 是助动词,帮助动词来完成句子,用在疑问句中,动词前面,疑问词后面,并没有实在意义.而且表示的...