问题
Tom ________ get up late in the past, but now he ________ getting up early. [ ]
A: used to; is used to
B: is used to; used to
C: used to be; used to
D: be used to; be used to be
B: is used to; used to
C: used to be; used to
D: be used to; be used to be
正确答案是: