—IboughtaverybeautifulpostcardforTeachers’Day.—Great!Wh...

问题详情：

—I bought a very beautiful postcard for Teachers’ Day.

—Great! When _____ you _____ it?

A. do; buy     B. will; buy         C. did; buy                         D. did; bought

【回答】

C  由动词bought可知时态是一般过去时，疑问句用助动词did，动词用原形，故选C。

知识点：动词时态

题型：选择题