问题补充：
It’s the same in China --- many people, some are not overweight at all, are always going on diets or taking weight-loss pills, are often dangerous.
A. whose; which
B. of which; who
C. of whom; which
D. who; that
答案：
A. whose; which
B. of which; who
(答案→)C. of whom; which
D. who; that
解析：考查定语从句。根据逗号可知，第一空是非限制性定语从句，whose后加名词，some of...“......的一些”；故用of which；指代整个句子，用which。故选C。
