-Are you a teacher? -No, but I . [ ] A. used to B. was used to C. used to be D.
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![-Are you a teacher? -No, but I . [ ] A. used to B. was used to C. used to be D.](/pic/43_786720.jpg)
-Are you a teacher?
-No, but I ________.
[]A.used to
B.was used to
C.used to be
D.used to do
试题答案
答案:C
![-Are you a teacher? -No, but I . [ ] A. used to B. was used to C. used to be D.](/pic/43_786720.jpg)
-Are you a teacher?
-No, but I ________.
[]A.used to
B.was used to
C.used to be
D.used to do
答案:C