He listen to pop music, but now he dancing
A. is used to, used to
B. used to, is used to
C. used to, is used for
D. used, used for
网友回答
A. is used to, used to
(答案→)B. used to, is used to
C. used to, is used for
D. used, used for
解析：
used to do 表示过去常常做某事，而现在往往不做了
be used to doing 表示习惯于做某事
be used to do表示...被用来做某事
根据题意,前文应是过去习惯听音乐,现在习惯了跳舞蹈.所以选B.