We have two spare rooms,____has been used for more than two months.A.but neither of which B.none of whichC.but neither of them D.none of them应该选那个选项?请说明一下理由.THANKS~

We have two spare rooms,____has been used for more than two months.A.but neither of which B.none of whichC.but neither of them D.none of them应该选那个选项?请说明一下理由.THANKS~ to spare是什么用法及意思,在句子中啥成分we have an hour to spare,是嘛意思 We have two ____every month (party) We have two ___（party) this year. at least we have two more left Between two classes ,we have b( ) between two classes,we have a b___ we have eight什么and two 什么 We have two computers.改为一般疑问句 we have two dictionarias变为一般疑问句 we have two volleyball改成-般疑问句 why dont we have two noses We have two towels划线提问 we have ___specialsA.two new greatB.two great newC.great two newD.new great two we will have a two-week holiday(改成同义句)we will have two __________ __________ 动词填空：When you come to visit Wuxi,you can live in my house.We have a room______(spare).spare,就是不明白为什么, girls just want ro have We have two races ,two languages ,two systems of religious belief ,two sets of laws …two systems