I do't know what to do and to say.改错

i don't know what to do I understand,but,I don't know what to do? 翻译I don't know what to say or do. i don't know to do what 对吗 i don't know ()to do.填what还是how I didn't know how to do? I didn't know what to do? I didn't know that I do?这三句有什么区别啊? I don’t know what to do.I don’t know how to do.（ × ） 第二句 how 怎么错了?I don’t know what to do.(正确) I don’t know how to do.（ × ） I don't know what to do 能否说成 I don't know what to be done. i dont know what to do (next) 和i dont know how to do (next)的区别 I didn't know what to do 与I didn't know how to do有什么区别 为什么I don't know what to do成立而I don't know how to do不成立 I don't know what to say or do求同意句I don't know what should. I didn't know what I should say 用 what to do 替换 I do not know what to do.同义句子I don't know_______ ______ _____ _____. I want to cry!I don't know what can i do!I'm very sad! I do't know what to do and to say.改错 i don't know how to do next还是what to do next Since i didn't know what to do,.改成_ _what to do