问题补充:
There is a piece of news from Shandong Province saying: in the school-bus for the whole day, the child died for lack of air.
A. Being kept
B. Kept
C. Having been kept
D. Have been kept
答案:
A. Being kept
B. Kept
(答案→)C. Having been kept
D. Have been kept
解析:由题干可判断出for the whole day,作时间状语, 并且和后面的动作died具有明显先后顺序, keep与the child之间为被动关系, 应用现在分词完成被动式。