问题补充：
At least 24 people in the earthquake in Yingjiang on March 10th.
A. killed
B. were killed
C. are killed
D. have killed
答案：
A. killed
(答案→)B. were killed
C. are killed
D. have killed
解析：此题考查一般过去时的被动语态的基本构成。因时间状语是March 10th描述的是过去时间，其基本构成为was或were+动词的过去分词表示主语是动作的承受者，又因主语是people是复数形式，故选B.
