--- Where is your mother?
--- She has to Sichuan on business. She has there four times recently.
A. gone, gone
B. been, been
C. gone, been
D. been, gone
网友回答
A. gone, gone
B. been, been
(答案→)C. gone, been
D. been, gone
解析：has/have been to曾经去过某地，has/have gone to 去了某地，根据语境选C。