It's rude to do sth中的rude为什么不用副词形式

It's rude to do sth中的rude为什么不用副词形式 It's polite/rude to sb to do sth怎么译It's polite/rude of sb to do sth急！ It's time to do sth It's easy +doing sth.还是＋to do sth.? 用is rude on sb to do sth造句 请问It's better to do sth.和It's best to do sth.区别是什么 it's +比较级+to do sth和it +形容词+to do sth有什么区别 it's one's duty to do sth.翻译 It 's one 's first time to do sth it's one's turn to do sth it's up to sb.to do sth. It' fun to do sth 这句有没语法错误,It's+ adj 后面什么时候加to do sth 什么时候doing sth It's difficult to do sth 还是It's difficult doing sth It’s time for doing sth=It’s time to do sth 成立吗 It‘s a good time for sb to do sth中,to do sth在句中充当什么成分?for sb是什么成分 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