问题
选择题
Mrs Smith ______ a teacher. But she doesn't do that job now. [ ]
A. used to be
B. was used to be
C. has been
D. was used to doing
答案
答案：A
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Mrs Smith ______ a teacher. But she doesn't do that job now. [ ]
A. used to be
B. was used to be
C. has been
D. was used to doing
答案：A