doing sth is important for sb?我们都知道一个句型：It's important for sb to do sth .那么变形,TO do sth is important （for/to） sbDoing sth is important （for/to） sb用哪个?要求有详细,有说服力的理由,感激不尽@!@叫

问一个英语语法问题he is doing sth and doing sth还是he is doing sht and is doing sth There is sb. doing sth.是什么意思 there is no point in doing sth. 可以说It is easy doing sth吗 doing sth is 造句 7句 it is difficult doing.sth造句 用it is pleasure doing sth造句 It is worth doing sth同义句 is doing sth 有哪些用法举例说明 用there is sb /sth doing sth,stop sb (from) doing sth造句 there is no sense in doing sth there is no sense in doing sth sb in doing sth 是there is nothing wrong with sb in doing sth it is my frist time to do sth / or doing sth/or do sth? is difficult to do sth .还是to doingis difficult to do sth .还是to doing sth, it is adj.to do sth.it is adj.doing sth.有什么区别it is adj.to do sth.it is adj.doing sth.有什么区别? 求些英语句子组合比如is doing sth ；sb to do sth；enjoy doing sth这样的 our hope is to do sth.还是doing sth.our hope is to do sth.our hope is doing sth.哪个是对的? it is no it is no use doing sth为什么不是it is not use doing sth?