China, a country with 145 million elderly people, will remain _______ ageing society during this century, according to _______ Chinese population experts.
A. /; the B. an; / C. an; the D. the; /
China, a country with 145 million elderly people, will remain _______ ageing society during this century, according to _______ Chinese population experts.
A. /; the B. an; / C. an; the D. the; /
B