问题补充：
— Where is your father?
— He Beijing. He will be back in three days.
A. has gone to
B. has been to
C. has been in
D. has lived in
答案：
(答案→)A. has gone to
B. has been to
C. has been in
D. has lived in
解析：句意：你的爸爸在哪里？他去北京了。三天后就回来。has gone to 已经去了某地，还没有回来，has been to曾经去过某地，回来了，has been in表示在某个地方呆了多长时间了，根据句意，故选A
