问题
选择题
_____ study in No.4 Middle School? [ ]
A. Did you used to
B. Did you use to
C. Do you used to
D. Do you use to
答案
答案：B
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_____ study in No.4 Middle School? [ ]
A. Did you used to
B. Did you use to
C. Do you used to
D. Do you use to
答案：B