.—His father an actor , didn't he ? —Yes, he did .
A. used to being
B. used
C. used to be
D. uses to be
网友回答
A. used to being
B. used
(答案→)C. used to be
D. uses to be
解析：句意：他的父亲过去是一名医生，是吗？——是的，他是。结合语境可知上文描述的是过去的动作，故谓语动词用过去时态。Used to do sth过去常常做某事，be used to sth习惯于某事，故选C。