问题补充：
My father in the morning, but now he after supper.
A. is used to run; is used to walking
B. used to run; is used to run
C. used to run; is used to walking
D. is used to running; used to walk
答案：
A. is used to run; is used to walking
B. used to run; is used to run
(答案→)C. used to run; is used to walking
D. is used to running; used to walk
解析：本题根据use 的用法，be used to do sth （被用来做某事） be used to doing sth(习惯于做某事) used to do sth（过去常常做某事），故选C
