I have bought a Chinese – English dictionary. When and where you it?A. have boughtB. did

问题补充：

I have bought a Chinese – English dictionary. When and where you it?

A. have, bought

B. did buy

C. will, buy

D. do , buy

答案：

A. have, bought

(答案→)B. did buy

C. will, buy

D. do , buy

解析：句意：我已经买了一本汉英词典。你什么时候在哪儿买的？结合语境可知下文强调的是过去某时发生的动作，故用一般过去时态，选B。