Question

--Is your father a teacher?
---well, he _______.

A．used to

B．was used to

C．used to be

D．is used to be

Answer 1

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。