为什么 remains 后面没有 is That remains a puzzle to me.　对我来说,那是一个残余的难题.

为什么 remains 后面没有 is That remains a puzzle to me.　对我来说,那是一个残余的难题. the remains of the building的主语是什么后面的谓语是根据remains还是building，是is还是are the fact___ that Taiwan is a part of China.remains,remaining,is remained,is remaining答案是remains,为什么?翻译 Why dinosaurs died out remains a puzzle.remain不是不及物动词吗?为什么后面跟名词? 请问画线句子的含义是什么?为什么remains后面可以直接跟city? 为什么电风扇后面没有风 气管后面为什么没有软骨 find that hard to believe”“that”后面为什么没有“it is”? it is easy to take care of为什么后面没有it I think it hard to fall asleep in night.为什么it后面没有is there is no book on the desk为什么no后面没有a?Rt.求快! She is leaving the second week in july这句话为什么 leaving后面没有跟介词 英语remains后面谓语用单数还是复数 what caused the accident and who was responsible for it ( ) a mystery to us.A.remain B.remains如果是的话,为什么后面是a mystery? As he is not good at leanring English ,his English ___ very weakA.still B.remains C.is remained D.is left 要选哪个 为什么 my parents‘ being blessed with health and happiness is my biggest wish.my parents后面为什么没有is When and where to go for the on-salary holiday still ____.A.is remaining to decide B.remains to be decide选哪个,为什么?B.remains to be decided That remains is a puzzle to me中remains是什么词性?