问题补充：
----What is the people in the village ?
----I am sorry. I don’t know. I only know that people like living in village.
A. the number of , the number of
B. a number of , the number of
C. the number of , a number of
D. a number of , a number of
答案：
A. the number of , the number of
B. a number of , the number of
(答案→)C. the number of , a number of
D. a number of , a number of
解析：1．the number of表示“……的数量”，跟复数名词连用作主语时，中心词是number，谓语动词要用单数。
2．a number of表示“许多”，相当于 many，修饰可数名词复数。作主语时，谓语动词用复数。number前可用large，small等修饰，以表示程度。
根据题意前面说的是人的数量，后面是指有许多人，所以选C.
