问题补充：
the people lost their lives in the traffic accident.
A. Three hundred
B. Three hundred of
C. Three hundreds of
D. Hundred of
答案：
A. Three hundred
(答案→)B. Three hundred of
C. Three hundreds of
D. Hundred of
解析：考查数词的用法。hundred/thousand/million等前有数字时，不能用复数，且不合of连用；排除C；hundred/thousand/million不能单独和of连用，排除D。three hundred后应该直接加名词，本题有the，排除A。句意“那些人中的300名在交通事故中丧生。”故选B。
