问题补充：
Kitty to Beijing and she won’t come back until next Monday.
A. has been
B. had gone
C. went
D. has gone
答案：
A. has been
B. had gone
C. went
(答案→)D. has gone
解析：句意：Kitty去了北京，直到下周一她才会回来。根据句意本句须用现在完成时，再区分A和D选项。has been to 表示已经去了某地，has gone to 表示曾经去过某地。故选D。
