—It smells terrible. What has happened here?—Look, there is a chemical factory

题型：不详难度：来源：

—It smells terrible. What has happened here?
—Look, there is a chemical factory ____waste water___ the river.
A. pour; into            B. pouring; into         C. poured; to

答案

B

解析

试题分析：句意：---这闻起来很难闻。这里发生了什么？---有一家化工厂正把污水排进河里。There be sth.doing.其中sth.是主语，doing是定语修饰主语，表示正在发生的事。动词短语pour into倒入。故选B。
考点: 考查非谓语动词和介词的用法。