问题补充：
About people are in the People’s Park at the weekends.
A. two hundreds
B. two hundreds of
C. two hundred
D. hundred of
答案：
A. two hundreds
B. two hundreds of
(答案→)C. two hundred
D. hundred of
解析：表示具体数量用数词+名词，数词不可使用复数，本题two hundred people表示两百人的意思，故本题选C。
