题目内容
--- What’s your mother?
--- She ___________ a teacher, but now she is a doctor.
A. used to be B. was used to C. use to be D. is used to be
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题目内容
--- What’s your mother?
--- She ___________ a teacher, but now she is a doctor.
A. used to be B. was used to C. use to be D. is used to be