问题
Is your mother still a teacher?— ______.
A:Yes, she was
B:She didn’t use to
C:No, but she used to
D:No, but she used to be
B:She didn’t use to
C:No, but she used to
D:No, but she used to be
正确答案是：
同类题型
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The old man, _____ abroad for twenty years, is on the way back to his motherland. [ ]