sb.'s sth.和 sth.of sb.哪个正式

sb.'s sth.和 sth.of sb.哪个正式 什么时候用sth.of sb.什么时候用sb's sth It's +adj of sb to do sth 和 It's for sb to do sth有什么区别?It's +adj of sb to do sth 和 It's + adj for sb to do sth有什么区别？ 总结It's+adj.+for sb.to do sth.和It's+adj.+of sb.to do sth It's adj for sb to do sth和It's adj of sb to do sth有什麽区别? It's sb's sth? 造句：hard sb sth/sth to sb .sell sb sth/sth to sb lend sb sth/sth to sb serve sb sth/sth to sb s造句：show sb sth/sth to sb .offer sb sth/sth to sb .take sb sth/sth to sb .owe sb sth/sth to sb.teach sb sth/sth to sb.pass sb sth/sth to sb .tell 区分英语句型It's …… + for / of sb.to do sth .for sb 和 of sb 的区别 turn sb's back on sth/sb 有没有 borrow sb sth 或 borrow sb's sth sth.be sb.'s favourite=sb.() sth.() 用It’s+形容词+of sb to do sth造句 it's very kind of sb to do sth 翻译：It's very kind of sb. to do sth. it's kind of sb to do sth It's polite of sb to do sth 准确翻译 let sb to do sth和let's sb do sth的复数形式 英语：help sb. do sth. 、help sb. to do sth. 、help s英语：help sb. do sth. 、help sb. to do sth. 、help sb. sth. 和help sb. with sth.四者有什么区别?（诚心提问,捣乱勿进）