I dont know why he was late for school again.———why he was late for school again.前面有4个空

why?I dont know! 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?我打错了　是Idont know the reason why he was late 英文歌I DONT KNOW WHY YAYA THE DREAM . I DONT KNOW WHY YOU WERE LATE FOR SCHOOL AGAIN 谢和弦i dont know why下载地址 I dont know why do you do it.正确吗I dont know why you did it. I dont know why he was late for school again.———why he was late for school again.前面有4个空 i dont know f i dont know her “i dont know chinese ” i dont know baby maybe .,he try to say something .. i dont know if he will come tomorrow / i dont know if he comes tomorrow哪一个正确 I dont know why I love you but I do 汉语翻译 baby i dont know why i so like u这句话什么意思? i always knew looked formiliar (friends中的话)i dont know,that's why im asking Not I dont know why i behold the sky翻译中文 I dont know why he was late for school again.（同义句转换）———why he was late for school again.前面有3个空