If--------,water will be harmful to human life.A.polluting.B,being polluted C.polluted.D.h...If--------,water will be harmful to human life.A.polluting.B,being pollutedC.polluted.D.having polluted应该选哪个,

问题描述:

If--------,water will be harmful to human life.A.polluting.B,being polluted C.polluted.D.h...
If--------,water will be harmful to human life.
A.polluting.B,being polluted
C.polluted.D.having polluted
应该选哪个,

C 相当于if it is polluted .这里属于省略的一种现象.