问题补充：
—Where is Jack? I haven’t seen him for a long time.
—He HK with his family. I think he is having a wonderful time there.
A. went to
B. was in
C. has gone to
D. has been to
答案：
A. went to
B. was in
(答案→)C. has gone to
D. has been to
解析：句意：杰克在哪里？我已经好久没有看见他了。他和他的家人去香港了，我觉得他在那里玩的开心极了。has gone to表示去了某地，人还没有回来，has been to表示去过某地，人已经回来了，根据句意，故选C
