i dont know that is i was born

i dont know that is i was born 2句句子有分别吗?I dont know that she is pretty I dont t I dont know the reason why he was late 为什么不用that I dont know why he was late.这个句子里为什么用why不用that? i dont know her why?I dont know! i dont know f 8.— Does anyone know _____?— I hear that he was born in Swed "i dont know who is the boy" & "i dont know who the boy is" 英语翻译RT原句I dont know what it is that I like about you but I l 英语翻译I dont know where is the house NO.1 located I dont know i was born on 1980Nov24th,6:55am; like to know what is the g