It's clever for him to work out the difficult math problem.单句改错

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it's +adj +for/of sb to do sth
当形容词是指人的品质方面的,如bad坏,kind,distingue高尚的等等,则应该用of
其他情况下一般用for.
所以此句应把for改为of

It's easy for him to work out the difficult math problem.

It's clever of him to work out the difficult math problem.
句型it's adj +for/of sb to do sth
如果这个形容词可以修饰人，就用of，如果不能用来修饰人，就用for，句中clever可以修饰人，所以用of

clever———hard

It's clever of him to work out the difficult math problem.。 it's adj +for/of sb to do sth。 ...

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It's clever of him to work out the difficult math problem.。 it's adj +for/of sb to do sth。用of是指这个人很聪明所以to，结论他可以做出这道难题。而不是for,for是指物，那么便会成：这道题是这么聪明、对于他，去、做出这道难题。of修饰人,for修饰物。

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It's clever for him to work out the difficult math problem.单句改错 it's p____ for him to finish the work in a day because he is clever enough It's very clever ( ) him to say so.选词填空（by for to of with be from about) it was very clever()him to catch the thief为什么用of 而不用for It's very clever of him to say so.请教中文意思 It's clever of him ____ (work) out the problem so quickly. it`s nothing new for him.是什么意思? 翻译It's all for him. It is clever ____ smoking.a:of him stopping b:for him to stop c:foe him stopping d:of him to stop it is very clever ______ him to answer such difficult question. A. for B. of C . to D with it's time for him [ to go ]to school It's important for him to work on their farm It's no use asking him for help的翻译 hard,it's,him,for怎样连词成句 If you love him,bring him to NewYork for it's heaven.If you hate him,bring him to NewYork for it's He's done for It's too late to save him now.He's done for. It's very clever of you to do that.句中为什么用of,用for不行吗? It's very clever ____you to make that decision.A.for B.of C.to 选哪个?为什么?