_____ study in No.4 Middle School? [ ] A
题型:选择题
问题:
_____ 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
_____ 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