The river has become much than before because of the waste water.A. dirty B. dirtier C. Dirtiest 题目和参考答案——青夏教育精英家教网—

题目内容

The river has become much ______ than before because of the waste water.

A. dirty B. dirtier C. Dirtiest

【解析】

试题分析：句意：因为废水的原因，这条河已经变得比以前更脏啦。句中than是比较级的标志，根据语意故选B.

考点：考查形容词比较级。

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