for和of用法的区别1.It's necessary ______us to master a language.2.It's unwise ______them to refuse our help.3.It is very important _____us to study some rules.4.It is unpracticable ______us to finish such a difficult taskin such short time.5.It

It's for sb.和 It's of sb.的用法说一下这两个的用法和区别 It's time for...和It's time to 的用法和区别? for和of的用法和区别 for和of的用法的区别 to,of,for的用法和区别 For 和 Of 的区别及用法! for、of、from、的区别和用法, happen 的用法1.happen的用法2.It's too ------(loud)【为什么横线上的单词不填loudly?]3.far form 和far away的用法区别4.on computer,in comeputer,whit computer 用法哪一个是对的?5.of 和for的用法上有什么不同?6.Let's it's kind of you 和it's kind for you 的区别? It's very kind of you...和 It's very kind for you...的区别 it's rude of和it's rude for的区别就是it's adj.后面加of 和加for有什么区别,十万火急! it's和it的区别和用法it's和it有什么区别 It's none of my Business 还有none和 no one 的用法和区别? it is adj for/of sb to do sth这里的for和of用法有啥区别? it's time to和it's time for具体一点的用法,复制也好,总之要归纳一个完完整整的区别和用法 it,is,It's,its之间的用法和区别 it,is,It's,its之间的用法和区别 to,for和of的区别和用法