It is sb who 的强调句中Sb用什么格?

It is sb who 的强调句中Sb用什么格? WHO IS THE SB 英语老师说：It is time that sb did sth.该是某人做某事的时候了.我认为这句话的语法上是错的.应改为：如果当作是强调句,则是 It is at time that sb did sth.如果当作是定语从句,则是 It is time when sb did Who is it who...有没有这样的强调句如果有,举个例子 英语的强调句结构it is...that/who...,什么时候用that,什么时候用who? it's the first time that sb.have done到底是不是强调句 it is sb to do sth 有没有这个强调句型? So it is with sb.和It is the same with sb.的区别 it is...for sb.to do...和it is...of sb.to do...的用法 it is+adj+for sb to do sth的句试造5句不同的话快了急用 It is +adj.+for sb. to do sth.中sb.为什么要用宾格 It is +adj +of（for） sb to do sth中的of（for） sb 在句中充当什么成分. 强调句中是用it is me 还是 it is 可我说的是强调句。it is () who +从句 强调句的主语是IT吗比如说It is he who sleeps early.的主语是IT吗 强调句 I have always been honesty and it doesn‘t matter who it is I am talking to. who 引一个强调强调句中为什么没有that? 请问,强调句中（it is/was.that/who）除了is/was,be还可以采用什么形式? Is it necessary for sb to do sth 同义句同义句,句型是：_____ sb _____ _____ do sthDoes sb deserve to do sth necessary是“必要”的意思，deserve是“值得”的意思。继续等 who is that sb的意思 如Who is that man?