My teacher used to a bike to school, but now he is used to a car to work.
A. ride, driving
B. ride, drive
C. riding, drive
D. riding, driving
网友回答
(答案→)A. ride, driving
B. ride, drive
C. riding, drive
D. riding, driving
解析：used to do sth，表示过去常常做某事，be used to doing sth，故选A