What we need is/are books 应该填哪个啊 大家好像众说纷纭

what we need most are/is books?is?are? what they need most （is）money while what we need most （are） textbooks what we need is a 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( ) good textbooks.A isWhat we need( ) good textbooks.A is B are C have D has raw material is what we are badly in need of.能换成Raw material is what we are badly need吗 改错：What we need are time. 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. 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 Raw material is what we are badly in need of.It is raw material that we are badly in need of这两句有什么区别,各是什么从句? What we need _________(be)books是填is 还是are为什么 What we need---more waterA are B is C have D has What we need is/are books 应该填哪个啊 大家好像众说纷纭 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 What we need to look up in the dictionaries --------the meanings of the new words.What we need to remember -----how to use the words correctly.A.are,is B.is is C.is are 为什么? What we need to look up in the dictionaries --------the meanings of the new words.What we need to remember -----how to use the words correctly.A.are,is B.is is C.is are 为什么? 我们需要做的是做家务 用主要从句怎么表达?What we need do is to do homework.What we need do is do homework.What we need do are to do homework.What we need do are do homework.请问哪个是对的?后面的do 可以用ing形式 来表