What we need are good doctors.为什么谓语是are而不是is,主语是waht啊

All that we really need to plot out the future of our universe are a few goo 改错：What we need are time. what we need most are/is books?is?are? ①What we need ___good textbooks.A.are B.have what do we need?do可否换成are Sometimes struggles are exactly what we need in our life. what they need most （is）money while what we need most （are） textbooks 1.what we need is time 2.what we need are good doctors 这两句话为什么用what,what做什么成分这句话为什么不用that 1.what we need is time 2.what we need are good doctors 这两句话为什么用what,what做什么成分为什么不用that. What we need( ) good textbooks.A isWhat we need( ) good textbooks.A is B are C have D has What we need are good doctors.为什么谓语是are而不是is,主语是waht啊 what we need和what do we need区别 raw material is what we are badly in need of.能换成Raw material is what we are badly need吗 what we need is a Love helps us understand who we are,why we need each other and what we can do fer each ather. friendship helps us understand who we are,why we need each other what we can do for each other.意思 Raw material is ________A、that we are in need of B、that being in need of C、what being in need of D、what we are in need of raw material is what we are badly in need of .和raw material is what we badly need有什么区别,弄不明白第一句为什么那样用