The cool water stops the burning process，prevents the pain unbearable and reduces swelling.
A. bee
B. became
C. bees
D. being
网友回答
A. bee
B. became
C. bees
(答案→)D. being
解析：考查固定结构。Prevent sb (from) doing sth阻止某人做某事。句意：冷水可以阻止烧伤，阻止痛苦变得更加难以容忍，和减少肿胀。根据句意说明D正确。