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

发布时间：2020-08-23 01:26:40

—It smells terrible. What has happened here?
—Look, there is a chemical factory     much waste gas.
A. pour        B. pouring      C. poured  

网友回答

解析：句意：好难闻，这里发生了什么？看，有一个化工厂正在倾倒大量的废气。根据语境正在倾倒废气，所以用现在进行时态，故选B
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