问题补充:
My grandmain the country. Now shein the city.
A. used to live, lives
B. used to living, lived
C. uses to live, is living
D. was used to live, lives
答案:
(答案→)A. used to live, lives
B. used to living, lived
C. uses to live, is living
D. was used to live, lives
解析:短语:used to do 过去常常做某事,be used to doing sth 习惯于做某事,根据第二句中的Now,可推断出第一句说的是过去的情况,句意“我的爷爷过去住在乡下。现在他住在市里。所以选A。