问题补充:
My father live in the country. But now he living in the city.
A used to, is used to B is used to , used to
C use, used to D used to , is used to
答案:
解析:A 考查used to 的用法。used to do sth.“过去常常做某事”;be used to doing sth.“习惯于......”;be used to do sth.“(某物)被用做......”。“我的父亲过去住在乡村,但是现在他习惯于生活在城市了。”故选A。