They Hong Kong twice.A. have gone toB. have been toC. have been inD. have gone in

网友回答

A. have gone to
(答案→)B. have been to
C. have been in
D. have gone in
解析：have been in强调“过去曾去过”之意；have been to的意思是“去过而现在已返回”；have gone to的意思是“去了，而且没回来”，故根据句意选B正确。