My wife has been gone for two weeks visiting her mother.

　　我妻子回娘家已經(jīng)兩個(gè)星期了。

　　He has been gone many years now, but I think of him often.

　　父親離開(kāi)我們已經(jīng)很多年了，但是我時(shí)常想起他。

　　She has been gone two weeks today.

　　到今天，她已經(jīng)去了兩周。