Question

【题目】—When you the umbrella ?

—Last month.

A. did ; buy

B. did ; bought

C. do ; buy

Answer 1

【答案】A

【解析】句意：—你什么时候买的雨伞？—上个月。根据答语Last month可知该用一般过去时。当谓语动词是实意动词时，要借助助动词did帮助表达疑问。用了助动词did实义动词要恢复原形。所以选A。