现在完成时中have been to/have gone to/have been in的辨析

have been to：去过某地，回来了(有去已回)

have gone to：去了某地，没回来(有去无回)

have been in：在某地待了多久，后常跟since或for引导的时间状语

例：

1、( )Miss Green isn't in the office. She_______ to the library.

A.has gone B. went C.will go D. has been

解题思路：Miss Green没在办公室，她去了图书馆。说明人去了，现在未回来，故选A。

答案：A

2、( )My parents ______ Beijing for ten years.

A. have been in B. have been to 　C. have gone to D. have been

解题思路：我的父母在北京待了10年。说明动词要用延续性动词，have been to(去过)和have gone to(去了)都是瞬间动作，不能与时间段连用，故选A，表示在某地待了多久。

答案：A