AboutonethirdofthepopulationinBeijingandShanghai

问题详情：

About one third of the population in Beijing and Shanghai_________ netizens, but in poorer areas, only three or four percent _________online.

A. is; is             B. are; are            C. are; is              D. is; are

【回答】

B

知识点：主谓一致

题型：选择题