Since the recent river pollution in Shanxi Province , people more and more attention to the water quality.
A. pay
B. are paying
C. have paid
D. have been paying
网友回答
A. pay
B. are paying
C. have paid
(答案→)D. have been paying
解析：句意：自从最近在山西省的河流污染问题以来，人们越来越重视水质量。题目中用现在完成进行时态表示动作从过去开始一直延续到现在，还有可能继续延续下去。强调动作的延续，故选D.