I dont know what to do.在这里为什么不能把what改为how这个what to do不是不定时的复合结构吗?用how to do应该也可以啊,可是老师说必须用what,

i dont know what to do next同义句i dont know what _____ _____next i dont want to know My lovers dont know what is pub.I dont know how to explain.Who can help me?thank u. I am going home now i dont know what you did toI am going home now i dont know what you did to 英语翻译i dont know what to 同义句是what should i do 还是what i should do I have too much to tell you and dont know what to began 求一首歌歌名 歌词是```without you ,I dont know what to do` I dont know what trouble you have之后加什么加to do 还是doing I dont know what is you want to do.But I believe I will to help you.Idontknowwhatisyouwanttodo.BatIbelieveI.Iwilltohelpyou. i dont know what_____(say)to my grandparentsi dont know what_____（say）to my grandparents what is this.i dont know chines中文意思是什么 i dont know what problem u are talking about... i dont know what ()(do)next.can you help me? I dont't know what can't be came ture! i dont know f why?I dont know! i dont know her “i dont know chinese ”