例句：

　　It is time for sb to do STH.

　　是某人做某事的時(shí)候了。

　　It's time for sb to do something.

　　是某人做某事的時(shí)間了。

　　It(this , that)is the time for sb. to do sth.

　　是一種很常用的句式，意為“該到某人做某事的時(shí)間了�！�

　　It's time (for sb.) to do STH.

　　到了某人該做某事的時(shí)間了。