In January 1994 an oilbarge ran aground off the coast of San Juan, Puerto Rico, leaking its cargo of 750,000 gallons intothe ocean, while causing the pollution of the city's beaches. A. leakingits cargo of 750,000 gallons into the ocean, while causing the pollution of B. withits cargo of 750,000 gallons leaking into the ocean, and it polluted C. andits cargo of 750,000 gallons leaked into the ocean, polluting D. whileit leaked its cargo of 750,000 gallons into the ocean and caused the pollutionof (C) E. sothat its cargo of 750,000 gallons leaked into the ocean, and they werepolluting 正确答案是选C,当时我选的是B,因为我觉得C后面有v-ing这样的形式,有修饰oil barge的嫌疑,所以没有选。请告诉我为甚C后面的polluting是正确的?我一直对",......v-ing”形式充满了疑问
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