问题
Mr. Wang _______drive to work, but now he _______thereby bike to keep healthy.
A:used to; isused to going
B:used to; isused to go
C:was used to;is used to going
D:was used to;is used to go
B:used to; isused to go
C:was used to;is used to going
D:was used to;is used to go
正确答案是：
