what he wants to tell us isn,t known.when you will come back doesn,t matter为什么一个用is 一个用does
问题描述：
what he wants to tell us isn,t known.
when you will come back doesn,t matter
为什么一个用is 一个用does
答
be known 不是被动吗
matter 是动词 否定当然用 do not\ does not 啦
答
很高兴为您这不是很正常吗?what he wants to tell us 与when you will come back两个都是主语从句,谓语肯定用单数is是单数,does也是单数.不要把does看成复数了,这是谓语动词的第三人称单数.------------------------...