------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

科目 英语   题型 单选题   难度 中等

知识点： 主语+系动词+表语