Online shopping is becoming rising industry for China as the country is home to the worl

问题补充：

Online shopping is becoming rising industry for China, as the country is home to the worlds largest online population．

A. 不填;the

B. a;the

C. the; 不填

D. a; 不填

答案：

A. 不填;the

B. a;the

C. the; 不填

(答案→)D. a; 不填

解析：第一空泛指“一个正在兴起的产业”；第二空在home前不加冠词，指：……的家园。故选D。句意：网上购物在中国是一个新兴的产业，因为中国是世界上最多人口的家园。