i dont konw why that i try my best to study Maths,but the mark is still low.

i dont konw why that i try my best to study Maths,but the mark is still low. 我要提问Actually I also dont konw the just sentence that I ask in Baidu. why?I dont know! 是I dont konw what wrong is?还是I dont konw what is wrong i always knew looked formiliar (friends中的话)i dont know,that's why im asking I dont know the reason why he was late 为什么不用that I dont why I have to try i dont see you that 翻译：You are bilker!Something i konw ,just i dont want to say them.Dont think i am fucking stupid. 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 do you konw why i love pink so much 一个女声的英文歌 歌的开头好像是i dont konw believe us anymore I dont thank that...造句2个 I KONW 英文歌I DONT KNOW WHY YAYA THE DREAM . I DONT KNOW WHY YOU WERE LATE FOR SCHOOL AGAIN I love you but you why dont love why dont you just take me where i never been