I don‘t know whose bike is this.怎么改错?

I don't know ( ) book it is. A.who B.who's C.whose I don't know ___film to see.( ) A which B what C whose D why I don‘t know whose bike is this.怎么改错? Whose watch is this?( ),I don't know. whose 引导的宾语从句.这样：I don't know whose watch it is . I don't know. i don't know ____ book this one is?英语i don't know ____ book this one is?A.what's B.whose C.who D.who's i don't know ----my id card is.a,which b.where c.whose d.when问什么选b，其他的为什么不行呢 “i don't know you know i don't know i don't know ____ book this is.A.who B.whom C.whose D.Who's 该怎么选 为何为啥不能选d？ I don't know your brother.Oh,the man ____came to see me yesterday is my brotherA.who B.whose C.where D.whom 21.Is there anyonehere__name is Betty?Sorry,I don't know.A.who B.which C.whom D.whose 解释并翻译 ___ everyone here?Sorry,I don't know AIs ,don't B Does,don't sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss