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

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

Da; 不填

答案：

A. 不填;the

B. a; the

C. the;不填

(答案→)D. a; 不填

解析：句意：网购正在成为中国上升的产业，因为中国是世界上网民最多的国家。第一个空，是泛指，故用不定冠词a；第二个空，个体名词抽象化，不用冠词，选D。