问题
选择题
--Is your father a teacher?
---well, he _______.
A.used to
B.was used to
C.used to be
D.is used to be
答案
答案:C
C 考查used to的用法。“过去常常做……”used to do sth.,“习惯于......”be used to doing sth.“曾经是老师”, used to be中be的不能省略。