题目内容
() 1. [2015 • 陕西]We have done much to protect the environment. So the river is getting than before.
A. dirtier B. dirty
C. cleaner
1. C
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题目内容
() 1. [2015 • 陕西]We have done much to protect the environment. So the river is getting than before.
A. dirtier B. dirty
C. cleaner