问题
How does Jack usually go to work— He ______ drive a car, but now he ______ there to lose weight.
A:used to, is used to walk
B:was used to, is used to walking
C:was used to, is used to walk
D:used to, is used to walking;
B:was used to, is used to walking
C:was used to, is used to walk
D:used to, is used to walking;
正确答案是：
