study in No.4 Middle School?A. Did you used toB. Did you use toC. Do you used toD. Do you

问题补充：

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：

A. Did you used to

(答案→)B. Did you use to

C. Do you used to

D. Do you use to

解析：句意：你过去在第四中学读书的吗？used to 的疑问句型为Did sb use to do sth.? 或Used sb to do sth?，故选B。