—IboughtaverybeautifulpostcardforTeachers’Day.        —...

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

知识点：动词时态

题型：选择题