--What’s population of China?China has population of 1.5 billion.A. a; theB. the; aC.

问题补充：

--What’s population of China?

--China has population of 1.5 billion.

A. a; the

B. the; a

C. /;/

D. the; the

答案：

A. a; the

(答案→)B. the; a

C. /;/

D. the; the

解析：a population of表示人口的数量；the population of China特指中国的人口。