what should 后面跟 do or be done 为什么

what should 后面跟 do or be done 为什么 哪些词后面跟should do?it advisable/lest/forfear that...都可以+should do 且should往往可以省略 那么还有什么词后面跟should do? what gift should I take?gift跟在what后面行么 what about后面跟什么?would you like后面跟to do 还有一个后面跟什么 what should i do What should I do What should you do? Do what you should What should I do? what he should do what should I do? 一个英文单词“to tell sb what you think they should do后面是 to do sth what we should do is 后面加todo 或do.为什么不能加doing what we should do is后面到底加ing还是to do? 有什么单词后面跟to do 什么后面跟doing速求，O(∩_∩)O谢谢 正确的句子是I don't know what I should say还是I don't know what should I say.求解释在宾语从句里什么时候可以直接在what等代词后面跟疑问词,比如can do will等等；什么时候疑问词要放在主语后面? What about后面跟什么do sth?to do sth?doing sth? what we should do is 后面接什么 附加例句啊