题目内容
【题目】---What did you _______? ( )
---I _______ a book for you.
A. bought; buy B. buy; bought C. buy; buy
【答案】B
【解析】
问句已有did助动词，所以用原形；陈述句用一般过去时
练习册系列答案
相关题目
题目内容
【题目】---What did you _______? ( )
---I _______ a book for you.
A. bought; buy B. buy; bought C. buy; buy
【答案】B
【解析】
问句已有did助动词，所以用原形；陈述句用一般过去时