It's up to sb to do

It's up to sb to do it's up to sb.to do sth. it is up to sb to do sb.spends some time doing sth.it is+adj.+for sb.to do sth.it's up to sb.to do sth.造句 各两句 it's nice of sb to do 请问,It is up to sb.to do sth. 1.not until 2.be going to 3.It's tine for sb to do 4.It takes sb sometime to do sth 5.look up 造句 be up to sb’s it's adj for sb to do和of sb to do有什么不同 it up to sb.to deside it's time did 与it's time for sb to do有什么区别例句：it's time we made up our minds.it's time for us to make up our minds 英语翻译It's hard for sb.to do sth.快 用It’s+形容词+of sb to do sth造句 it's very kind of sb to do sth 用it’s time for sb to do sth造句 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？ 用“Its+adj+for sb to do sth”造句 翻译：It's very kind of sb. to do sth.