问题
选择题
The Smiths _______ China for ten years , so they have been used to the life here.
A. have been to B. have gone to C. have been in
答案
答案：C
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。