问题补充：
Shanghai authorities have guaranteed the quality of the city’s drinking water more than 7500 rotting pigs floating on the Huangpu River in the past week.
A. despite of, being founded
B. in spite of, being found
C. despite, being founded
D. though, being found
答案：
A. despite of, being founded
(答案→)B. in spite of, being found
C. despite, being founded
D. though, being found
解析：考查动名词用法。固定搭配in spite of/despite尽管；of是介词，后面要接动名词的形式；第二空是动名词的复合结构，根据句意说明使用被动语态的形式；句意：上海官方保证饮用水的质量，尽管上个星期超过7500头腐烂的猪在黄浦江的上游被发现了。故B正确。
