the terrible pollution, so many beautiful fish are fast disappearing in the river.
A. According to
B. Because of
C. Because
D. As a result
网友回答
A. According to
(答案→)B. Because of
C. Because
D. As a result
解析：本题的含义是由于严重的污染，河里有许多漂亮的鱼很快消失，because of后跟短语表示原因，故本题选B。