問題詳情:
The story of Tom Sawyer ______ in Missouri, America, in the 19th century.
A. had happened B. was happening
C. has happened D. happened
【回答】
D。對時態的考查。19世紀是一個已經過去的時間,所以這裏用一般過去時。所以*選D。
知識點:動詞時態
題型:選擇題