It is better to do sth late than never.迟做总比不做好。
It is important and useful for sb. To do sth.做某事对某人重要有用。
It is important for sb. to do sth.某人做某事是很重要的。
It is good/bad manners for sb. to do sth.表示“某人做某事是有礼貌的/无礼貌的”。
It is impossible to do sth There is no saying such words.不可能讲这样的话。
It is sometimes before your hormonal ready to do sth, you must stop want.有时在你的荷尔蒙蠢蠢欲动之前,你必须停下来想一想。
It is out of character to do that.那样做不合适。
It is very dreary to do the same job everyday.每天都做同样工作是很单调的。