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

问题补充：

They Hong Kong twice.

A. have gone to

B. have been to

C. have been in

D. have gone in

答案：

A. have gone to

(答案→)B. have been to

C. have been in

D. have gone in

解析：考查谓语动词。have been to去过，已经回来了，have gone to去了，还没回来，根据句意可知选B。