idea
1.下面各句里的of，不用的多，用的少：
- He must have some idea (of) what happened last week.
- I have no idea (of) whose house this is.
- We have not the remotest idea (of) how they have done it.
- Have you any idea (of) when he will come?
假使把idea改作notion，也是这样。...idea (of) what..., ...idea (of) whose ..., idea (of) how ..., idea (of) when... 等表达方式里的of不用的多，用的少，但I have no idea (of) the sort of man he is等句子里的of用的多，不用的少。
2.可以说He has little idea of it和She has put aside all idea of going。
