问题

He ________late watching TV when he was a student, but now he ________to bed early.
A:was used to staying up; is used to go
B:used to staying up; used to go
C:used to stay up; is used to going
D:used to stay up; used to go
B:used to staying up; used to go
C:used to stay up; is used to going
D:used to stay up; used to go
正确答案是: