问题
There ______many restaurants in town, but they _________ eat the food there at first.
A:used to have, didn’t use to
B:used to have, didn’t used to
C:used to be, didn’t use to
D:used to be, didn’t used to
B:used to have, didn’t used to
C:used to be, didn’t use to
D:used to be, didn’t used to
正确答案是：
