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

問題詳情：

—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  由動詞bought可知時態是一般過去時，疑問句用助動詞did，動詞用原形，故選C。

知識點：動詞時態

題型：選擇題