No one but his parts _ it.为什么选knows 不用know

no one but her parents (knows?know?) it no one but her parents (knows/know) it?到底是哪个?百度知道里两个答案都有人选啊~ 为什么 选这个1.It ____for 5 days and no one knows when it will sto no one knows,saw you were right or wrong.but i know,i never knows,one,no,his,name(.)英语造句, No one except my parents___anything about it.A.know B.knows No one knows how long it will last.They don't know how long 英语语法 Nobody but him knows it中为什么but后要用him而不用he No one knows why we sleep,but it iscertain that we need to.P "what do you think ""well,no one knows,but it's interesting No one knows about it,反义疑问句 ---DOES ______ KNOW HIS TELEPHONE NUMBER ----NO,____ KNOWS