-l have bought an english_chinese dictingary -When and where__you__it B:did buy D:have bought

题目

-l have bought an english_chinese dictingary -When and where__you__it B:did buy D:have bought
允许写的字太少了,就排除了两个,然后不知道哪一个对,A：do buy C:had bought

答案

B
一般过去时,你是在什么时候、什么地方买的,用动词过去式
但构成疑问句时,加助动词 did 放在主语前,动词过去式变原型
变成 did you buy,所以B对