The Smiths China for ten years so they have been used to the life here.A. have been toB

问题补充：

The Smiths China for ten years , so they have been used to the life here.

A. have been toB. have gone to C. have been in

答案：

解析：此题考查三个固定短语的区别。Have been to 表示曾经去过某地，have gone to表示去了某地，have been in 表示呆在某地，根据语境可知选择C。