问题补充：
My father Australia for a year. And he enjoys staying there.
A. has been in
B. has been to
C. has gone to
D. went to
答案：
(答案→)A. has been in
B. has been to
C. has gone to
D. went to
解析：句意：我的父亲待在奥大利亚有一年。并且他喜欢待在哪。分析：待在某地用stay，但是前句用了一个段时间，因此不能瞬间动词，将其转化的be in，句子体现现在完成时，故选A
