a friend of 是加 ours 还是 us

a friend of 是加 ours 还是 us we met a good friend of ours at school?对a good friend of ours 提问 a friend of ours写成our a friend可以吗`ours换成us可以吗/为什么? we went to visit a friend of ours（）the afternoom of last wednesday. 2.He is a good friend of ( ).A.our B.our's C.ours A friend of ours are waiting for us这句对吗,要不要把are 改成is?这句主语是A friend?可是你在网上搜索一下都是用are， we went to travel with some friend of ours ours代替了什么 be a friend of 后面加什么 be a friend of 后面加什么 a friend of 后加什么格 We are going to Paris to stay with a French friend of __ours__ .(we ) 为什么要选ours而不是us be an enemy 后面是加to还是of?be a friend 后面加to还是of? a friend of后加什么?为什么老师说例句：she is a friend of him.老师说of是介词，后加宾格。我不懂，为什么？ Yesterday l met _______.A.the friend of my father B.a friend of my friend'sC.my father's one friend D.one of my father's friendD肯定是不对的，要加‘s’的 they are good friends of ours.our为什么加s Friend of a Friend 歌词 英语翻译The eighties's of ours the eightys of ours 或者是其他 Ours is only a house of three s___.