---- ______ you ______ a bus to school?

---- Yes. But now I usually go to school on foot.

A．Do, like to take

B．Do, take

C．Did, used to take

D．Are, used to taking

（）年，劳动和社会保障部办公厅下发了《关于进一步加强生育保险工作的指导意见》。

A.2000

B.2002

C.2004

D.1998