问题
选择题
. He ____ in the north, but now he ____ here.
A．used to live; is used to the life
B．use to live; is used to live
C．used to living; is used to living
D．used to live; is used to live
答案
A
从句中一个now可知：前半句讲过去习惯，用used to do, 后半句讲现在，用be used
to (doing) sth.