— You used to be short ?A. used youB. did youC. didn’t youD. don’t you

问题补充：

— You used to be short,?

A. used you

B. did you

C. didn’t you

D. don’t you

答案：

A. used you

B. did you

(答案→)C. didn’t you

D. don’t you

解析：在反意疑问句中，前肯后否，故选，而used to sth，表示过去是怎样，后句的简略问句要借助于助动词did，故选答案为C